Heavyweight Paper Envelopes

Square envelopes are perfect for announcements, special events, corporate dinners, wedding reception invites, greeting cards, holiday cards, other invitations, direct mail, or general use. With a modern, square back flap and sleek design, these envelopes will compliment your stylish invitations, tasteful thank you cards, or meaningful notes. They are excellent for any formal or business occasion and also work well as shipping envelopes for a variety of small or flat items. You can’t go wrong with such a versatile choice. Best of all, these envelopes feature a peel-and-press sealing method! Simply remove the adhesive strip on the inside of the back flap and press down to seal your envelopes. You’ll get a great seal every time, no moistening required. The 70 lb. text-weight envelopes are an excellent choice because they are durable and will protect whatever you use them for. The sturdy and durable thickness of the envelopes in this 50 pack makes them perfect for shipping long distances without bending or tearing. When printed on, LUX envelopes are complemented with a wide variety of ink colors. You won’t have to worry about paper jams, tears, or ink smears with these envelopes. These envelopes are also ideal for addressing notes and invitations by hand. Whether you use a gel pen or calligraphy pens, you’ll be impressed with the high-quality, smudge-resistant paper. These envelopes measure 8 1/2” x 8 1/2” (216 mm x 216 mm)..SQUARE ENVELOPES: Designed to fit our 8 1/4” x 8 1/4” card, these 8 1/2” x 8 1/2” envelopes are also.PEEL & PRESS SEAL: The self-seal design of these envelopes is perfect for anyone who doesn’t want to.PRINTABLE & CUSTOMIZABLE: If you want to customize or label your envelopes with zero hassle, you’re.RECYCLED, RUSTIC STYLE: If you enjoy a more rustic aesthetic, these Grocery Bag paper envelopes are a perfect choice. The high-quality construction and material combined with the recycled look of this paper will get your rustic-chic theme across. If brown isn’t the color you’re looking for, we have other classic options available..USE TO ACCOMPANY GIFTS: These small envelopes are constructed from heavyweight LUX paper stock, making them durable and perfect for a variety of occasions. Use these for square notes and cards to place on top of holiday gifts or even to accompany birthday, baby shower, bridal shower, Mother’s Day, Valentine’s Day, or wedding gifts.

JAM Paper original Colored Clasp & Open End Envelopes always attract attention! Made from 28lb sturdy paper. Why using boring Gray or manilla when you can use a color?! Every envelope on this page opens on the SHORT SIDE of the envelope. The ones called CLASP have a gum and a metal clasp. The Open End (no clasp) envelopes just have gum..Violet Purple Envelope.Size: 10 x 13 inches.Quantity: 25 Envelopes per Pack.Envelopes are made from smooth 28lb paper, include both gummed flap closure and folding metal clasp

JAM Paper® Brown Kraft Paper Bag Recycled 9 x 12 Open End Envelopes with Clasp Closures are made out of environment-safe, 100% recycled paper! These envelopes are sold in a pack of 100! Each one measures 9 x 12 inches in size, making them ideal for enclosing standard sized documents without folding or creases! These open end envelopes feature commercial style flaps and easy-to-use, reliable metal clasp closures, as well as optional-use gum closures for added reinforcement. Take advantage of these eco-friendly envelopes for any home or office mailing need! Their natural, earthy brown color makes them appropriate for any mailing purpose!.Size: 9" x 12".Closure: Clasp.Opening: Open end.Material: Kraft paper.Finish: Texture.Perfect for greeting cards, invitations, weddings or any announcement.These anti-manilla clasp envelopes are made from 28lb sturdy paper.Clasp envelope is sure to attract attention and deliver in style.Paper weight: 28 lbs..100 envelopes per box.JAM Paper® Brown paper bag recycled envelope in a box of 100 is made out of sturdy kraft material and has an open end metal clasp closure.

Are you looking for a pack of high-quality envelopes for invitations, announcements, greeting cards, and more? These envelopes are also perfect for any occasion from playful to formal. The modern contoured back flap adds a sophisticated touch that you won’t find with other sets of similar envelopes. Best of all, these envelopes feature a moistenable glue sealing method on the flap! Simply moisten and press down to seal your envelopes. You’ll get a great seal every time. The 80 lb.. text-weight envelopes are an excellent choice because they’re about twice as thick as regular printer paper. The sturdy and durable thickness is perfect for shipping long distances so you won’t have to worry about bending or tearing. When printed on, LUX envelopes are complemented with a wide variety of ink colors. You won’t have to worry about paper jams, tears, or ink smears with these envelopes. They’re designed for compatibility with laser and inkjet home printers. These envelopes are also ideal for addressing notes and invitations by hand. Whether you use a gel pen or calligraphy pens, you’ll be impressed with the high-quality, smudge-proof paper. These A2 invitation envelopes measure 4 3/8” x 5 3/4” (111mm x 146mm). If you’re in charge of envelopes for a wedding, party, holiday, corporate gathering, banquet, shower, birthday, or graduation, LUX 80 lb.. Natural - 100% Recycled envelopes are a durable and high-quality option for all your party-planning needs. Purchase a package of 50, 250, 500, or 1000 today!.PERFECT FOR ALL OCCASIONS: If you’re looking for an envelope for pregnancy announcements, RSVPs, thank-you cards, save the dates, baby shower or wedding invitations, holiday cards, and more, our A2 LUX Paper envelopes are an excellent option. These contour flap envelopes are also perfect for direct mail, letters, postcards, and half-folded paper, so you can depend on them for mailing needs..MOISTENABLE GLUE SEAL: These envelopes are designed with a traditional moistenable adhesive sealing method. Rather than licking individual envelopes, you can choose to use an envelope moistener, making it a huge time-saver! Simply moisten the strip of adhesive, apply pressure, and you’ll have the perfect seal. It couldn't be easier!.PRINTABLE & CUSTOMIZABLE: If you want to customize or label your envelopes, you’re in luck! These envelopes are printable on commercial, digital, and off-set printing presses, so you can have your company logo and branding printed on them. No need to worry about smudging or jamming because these envelopes are made for compatibility with most commercial printer models..100% RECYCLED: Send out all your invitations using this pack of eco-friendly envelopes. These heavy-duty envelopes are about twice as thick as printer paper, allowing you to package and ship notecards, letters, and photos without bends, rips, tears, or folds. If this isn’t the color you’re looking for, we have other elegant options available..DURABLE & RELIABLE: These envelopes are excellent invitation holders, so whether you deliver them by mail or in person, they are sure to still look great when they arrive. Made from heavyweight LUX paper stock with a side seam construction, these envelopes are thick and durable, making them perfect for things like photos, letters, mailings, personal mail, or invitations.

Are you looking for a pack of high-quality envelopes for invitations, announcements, greeting cards, and more? These envelopes are also perfect for any occasion from playful to formal. The modern square back flap adds a sophisticated touch that you won’t find with other sets of similar envelopes. Best of all, these envelopes feature a peel-and-press sealing method! Simply remove the adhesive strip on the inside of the back flap and press down to seal your envelopes. You’ll get a great seal every time, no moistening required. The 60 lb.. text-weight envelopes are an excellent choice because they’re about twice as thick as regular printer paper. The sturdy and durable thickness is perfect for shipping long distances so you won’t have to worry about bending or tearing. When printed on, LUX envelopes are complemented with a wide variety of ink colors. You won’t have to worry about paper jams, tears, or ink smears with these envelopes. They’re designed for compatibility with laser and inkjet home printers. These envelopes are also ideal for addressing notes and invitations by hand. Whether you use a gel pen or calligraphy pens, you’ll be impressed with the high-quality, smudge-proof paper. These A2 invitation envelopes measure 4 3/8” x 5 3/4” (111mm x 146mm). If you’re in charge of envelopes for a wedding, party, holiday, corporate gathering, banquet, shower, birthday, or graduation, LUX 60 lb.. White w/ Peel and Press envelopes are a durable and high-quality option for all your party-planning needs. Purchase a package of 50, 250, 500, or 1000 today!.PERFECT FOR ALL OCCASIONS.PEEL & PRESS SEAL..PRINTABLE & CUSTOMIZABLE.CLASSIC COLOR.DURABLE & RELIABLE

JAM Paper® Ultra Lime 6 x 9 Open End Envelope with Clasp Closures feature a bright and vivid ultra lime green color that will immediately grab the attention of any recipient or observer! This pack contains an even total of 10 envelopes. Each one features a commercial flap opening and a reliable, easy-to-use metal clasp closure! For additional reinforcement, each one also features a gum closure. At 6 x 9 inches in size, these open end envelopes are great for cards, invitations, folded documents, promotional materials, catalogs, messages, letters, photos, announcements, and more! Use them for home, office, or special event mailing needs..Ultra lime.Size: 6" x 9".Closure: Clasp.Opening: Open end.Material: Paper.Envelope flap: Straight.Finish: Smooth.Paper weight: 24 lbs..Water soluble dyes, acid free.Adds a pop of color to your promotional mail.JAM Paper® 6" x 9" Ultra lime clasp envelope is made of 24 lbs sturdy paper and features a square gummed flap, sold as 10 per pack.

Square envelopes are perfect for announcements, special events, corporate dinners, wedding reception invites, greeting cards, holiday cards, other invitations, direct mail, or general use. With a modern, square back flap and sleek design, these envelopes will compliment your stylish invitations, tasteful thank you cards, or meaningful notes. They are excellent for any formal or business occasion and also work well as shipping envelopes for a variety of small or flat items. You can’t go wrong with such a versatile choice. Best of all, these envelopes feature a peel-and-press sealing method! Simply remove the adhesive strip on the inside of the back flap and press down to seal your envelopes. You’ll get a great seal every time, no moistening required. The 70 lb. text-weight envelopes are an excellent choice because they are durable and will protect whatever you use them for. The sturdy and durable thickness of the envelopes in this 250 pack makes them perfect for shipping long distances without bending or tearing. When printed on, LUX envelopes are complemented with a wide variety of ink colors. You won’t have to worry about paper jams, tears, or ink smears with these envelopes. These envelopes are also ideal for addressing notes and invitations by hand. Whether you use a gel pen or calligraphy pens, you’ll be impressed with the high-quality, smudge-resistant paper. These envelopes measure 8 1/2” x 8 1/2” (216 mm x 216 mm)..SQUARE ENVELOPES: Designed to fit our 8 1/4” x 8 1/4” card, these 8 1/2” x 8 1/2” envelopes are also.PEEL & PRESS SEAL: The self-seal design of these envelopes is perfect for anyone who doesn’t want to.PRINTABLE & CUSTOMIZABLE: If you want to customize or label your envelopes with zero hassle, you’re.RECYCLED, RUSTIC STYLE: If you enjoy a more rustic aesthetic, these Grocery Bag paper envelopes are a perfect choice. The high-quality construction and material combined with the recycled look of this paper will get your rustic-chic theme across. If brown isn’t the color you’re looking for, we have other classic options available..USE TO ACCOMPANY GIFTS: These small envelopes are constructed from heavyweight LUX paper stock, making them durable and perfect for a variety of occasions. Use these for square notes and cards to place on top of holiday gifts or even to accompany birthday, baby shower, bridal shower, Mother’s Day, Valentine’s Day, or wedding gifts.

JAM Paper original Colored Clasp & Open End Envelopes always attract attention! Made from 28lb sturdy paper. Why using boring Gray or manilla when you can use a color?! Every envelope on this page opens on the SHORT SIDE of the envelope. The ones called CLASP have a gum and a metal clasp. The Open End (no clasp) envelopes just have gum..Orange Envelope.Size: 10 x 13 inches.Quantity: 25 Envelopes per Pack.Envelopes are made from smooth 28lb paper, include both gummed flap closure and folding metal clasp

For documents that can't or shouldn't be folded, use JAM Paper® Open End Catalog Envelopes with Self Adhesive Closure. These 9" x 12" white catalog envelopes are suitable for sending larger contents such as marketing materials, brochures, catalogs, flyers, large artwork, invitations and more. Your contents stay in their original state to preserve presentation and keep things professional. Whether you are using in the office, home or classroom, these envelopes are appropriate for all occasions. Available in an assortment of colors and sizes, your perfect envelope is just a simple click away! This pack includes 50 envelopes made from 28 lb. paper. Each envelope has an open end opening, wallet flap, self adhesive strip closure and smooth finish..Quantity: 50 per pack.Our envelopes are made from 28 lb paper that has a wallet flap with a self adhesive closure strip.Our high-quality envelopes are perfect for business mailing, document organization, file storage, and more

JAM Paper® Ultra Lime Open End Catalog Clasp Paper Envelopes are made out of smooth, high quality, 24lb paper and feature a bright, eye-catching vibrant ultra lime green color! This pack contains a total of 10 envelopes. Each one measures 9 x 12 inches in size and opens on one of the 9 inch ends. Their size makes them ideal for enclosing standard sized documents without any need for folding or creating messy creases. To keep the contents placed within secure as they make their way through the mail, these envelopes have commercial style flaps and reliable, easy-to use metal clasp closures. Each one also has an optional use gum closure for added reinforcement..Ultra lime.Size: 9" x 12".Closure: Clasp.Opening: Open end.Material: Paper.Envelope flap: Straight.Finish: Smooth.Paper weight: 24 lbs..Water soluble dyes, acid free.Adds a pop of color to your promotional mail.JAM Paper® 9" x 12" Ultra lime clasp envelope is made of 24 lbs sturdy paper and features a square gummed flap, sold as 10 per pack.

JAM Paper® Orange 9 x 12 Open End Catalog Envelopes with Clasp Closures are made out smooth, high quality, 30% recycled 24lb paper. This pack contains a total of 10 envelopes. Each one features a commercial flap opening and a reliable, easy-to-use, metal clasp closure. These envelopes each feature an optional use gum closure as well for additional reinforcement. The 9 x 12 inch size of these open end envelopes makes them ideal for enclosing standard sized documents with no need for folding or creating creases! Their bright and vibrant orange color ensures that they will be noticed by any recipient in any setting! Use these orange envelopes for home and office mailing purposes..Orange.Size: 9" x 12".Closure: Clasp.Opening: Open end.Material: Paper.Envelope flap: Straight.Finish: Smooth.Paper weight: 24 lbs..Acid free and made from water soluble dyes.Envelopes are a refreshing color that will be welcomed in any mailbox.Adds a pop of color to your promotional mail.JAM Paper® 9" x 12" Orange clasp envelope is made out of 24 lbs sturdy paper and has a gum with a metal clasp.

Are you looking for a pack of high-quality envelopes for invitations, announcements, greeting cards, and more? These envelopes are also perfect for any occasion from playful to formal. The modern square back flap adds a sophisticated touch that you won’t find with other sets of similar envelopes. Best of all, these envelopes feature a peel-and-press sealing method! Simply remove the adhesive strip on the inside of the back flap and press down to seal your envelopes. You’ll get a great seal every time, no moistening required. The 80 lb.. text-weight envelopes are an excellent choice because they’re about twice as thick as regular printer paper. The sturdy and durable thickness is perfect for shipping long distances so you won’t have to worry about bending or tearing. When printed on, LUX envelopes are complemented with a wide variety of ink colors. You won’t have to worry about paper jams, tears, or ink smears with these envelopes. They’re designed for compatibility with laser and inkjet home printers. These envelopes are also ideal for addressing notes and invitations by hand. Whether you use a gel pen or calligraphy pens, you’ll be impressed with the high-quality, smudge-proof paper. These A2 invitation envelopes measure 4 3/8” x 5 3/4” (111mm x 146mm). If you’re in charge of envelopes for a wedding, party, holiday, corporate gathering, banquet, shower, birthday, or graduation, LUX 80 lb.. White - 100% Recycled envelopes are a durable and high-quality option for all your party-planning needs. Purchase a package of 50, 250, 500, or 1000 today!.PERFECT FOR ALL OCCASIONS.PEEL & PRESS SEAL.PRINTABLE & CUSTOMIZABLE.100% RECYCLED.DURABLE & RELIABLE

JAM Paper® Ultra Lime Green 10 x 13 Open End Catalog Envelopes with Clasp Closures are made out of smooth, high quality, 24lb paper. This pack contains an even total of 10 envelopes. Each one has a commercial style flap opening and a reliable, easy-to-use metal clasp closure. For additional reinforcement, each one also has an optional use gum closure. These envelopes feature a visually striking, vibrant ultra lime green color that will not go unnoticed in any mailbox or office environment! At 10 x 13 inches in size, these envelopes are excellent for enclosing standard sized and slightly larger documents without any need for folding and creating messy creases!.Ultra lime.Size: 10" x 13".Closure: Clasp.Opening: Open end.Material: Paper.Envelope flap: Straight.Finish: Smooth.Paper weight: 24 lbs..Water soluble dyes, acid free.Adds a pop of color to your promotional mail.JAM Paper® 10" x 13" Brite hue recycled clasp envelope in ultra lime color is made from 30 percent post consumer paper and has matching 24 lbs paper and 65 lbs cover, sold as 10 per pack.

Are you looking for a high-quality A6 envelope for invitations, announcements, greeting cards, and more? These envelopes are also perfect for any occasion from playful to formal. The modern square back flap adds a sophisticated touch to this envelope. Best of all, it features a peel-and-press sealing method! Simply remove the adhesive strip on the inside of the back flap and press down to seal your envelopes. You’ll get a great seal every time, no moistening required. The 80 lb.. text-weight envelopes are an excellent choice because they’re about twice as thick as regular printer paper. This sturdy and durable thickness is perfect for shipping long distances without bending or tearing. When printed on, LUX envelopes are complemented with a wide variety of ink colors. You won’t have to worry about paper jams, tears, or ink smears with these envelopes. They’re designed for compatibility with laser and inkjet home printers. These envelopes are also ideal for addressing notes and invitations by hand. Whether you use a gel pen or calligraphy pens, you’ll be impressed with the high-quality, smudge-proof paper. These A6 invitation envelopes measure 4 3/4" x 6 1/2" (121mm x 165mm). They can also fit inside of larger-sized envelopes or paper inside, including A7, A8, A9, and A10. If you’re in charge of envelopes for a wedding, party, holiday, corporate gathering, banquet, shower, birthday, or graduation, LUX 80 lb.. White w/ Peel & Press envelopes are a durable and high-quality option for all your party-planning needs. Purchase a package of 50, 250, 500, or 1000 today!.Quantity: 50/Pack.PEEL & PRESS SEAL: The self-seal design of these envelopes is perfect for anyone..CLASSIC COLOR: White.PRINTABLE & CUSTOMIZABLE.DURABLE & RELIABLE

Are you looking for a pack of high-quality envelopes for invitations, announcements, greeting cards, and more? These envelopes are also perfect for any occasion from playful to formal. The modern square back flap adds a sophisticated touch that you won’t find with other sets of similar envelopes. Best of all, these envelopes feature a peel-and-press sealing method! Simply remove the adhesive strip on the inside of the back flap and press down to seal your envelopes. You’ll get a great seal every time, no moistening required. The 80 lb.. text-weight envelopes are an excellent choice because they’re about twice as thick as regular printer paper. The sturdy and durable thickness is perfect for shipping long distances so you won’t have to worry about bending or tearing. When printed on, LUX envelopes are complemented with a wide variety of ink colors. You won’t have to worry about paper jams, tears, or ink smears with these envelopes. They’re designed for compatibility with laser and inkjet home printers. These envelopes are also ideal for addressing notes and invitations by hand. Whether you use a gel pen or calligraphy pens, you’ll be impressed with the high-quality, smudge-proof paper. These A2 invitation envelopes measure 4 3/8” x 5 3/4” (111mm x 146mm). If you’re in charge of envelopes for a wedding, party, holiday, corporate gathering, banquet, shower, birthday, or graduation, LUX 80 lb.. Natural White - 100% Cotton envelopes are a durable and high-quality option for all your party-planning needs. Purchase a package of 50, 250, 500, or 1000 today!.PERFECT FOR ALL OCCASIONS.PEEL & PRESS SEAL..PRINTABLE & CUSTOMIZABLE.100% COTTON.DURABLE & RELIABLE

JAM Paper® Violet Recycled Purple 10 x 13 Open End Catalog Envelopes with Clasp Closures are made out of smooth, high quality, 24lb paper. The paper that these envelopes are composed of is made with 30% recycled materials! At 10 x 13 inches each, these open end envelopes are ideal for enclosing standard sized and slightly larger sheets of paper with no need for folding and no risk of creating messy creases! This pack contains an even total of 10 envelopes. Each one features a bright ,fun, bold, and noticeable violet purple color! To keep the items placed within secure, these envelopes have commercial style flaps and easy-to-use and reliable metal clasp closures. Each one also has an optional use gum closure for additional reinforcement..Violet.Size: 10" x 13".Closure: Clasp.Opening: Open end.Material: Paper.Envelope flap: Straight.Finish: Smooth.Paper weight: 24 lbs..Acid free and made from water soluble dyes.Envelopes are a refreshing color that will be welcomed in any mailbox.Adds a pop of color to your promotional mail.JAM Paper® 10" x 13" Brite hue recycled clasp envelope in violet color is made from 30 percent post consumer paper and has complementary 24 lbs paper and 65 lbs cover, sold as 10 per pack.

JAM Paper® Red Recycled 6 x 9 Open End Envelopes with Clasp Closures are made out of smooth, high quality, 30% recycled, 24lb paper. This pack contains 10 envelopes. Each one has a straight flap with rounded corners and a reliable, easy-to-use metal clasp closure. There is also an optional gum closure for additional reinforcement. Each one of these open end envelopes measures 6 x 9 inches in size and features a bright and bold red color. This color makes them especially useful for mailings during the Christmas season and around the time of Valentine's Day. Use them to send letters, promotional materials, holiday cards and more!.Red.Size: 6" x 9".Closure: Clasp.Opening: Open end.Material: Paper.Envelope flap: Straight.Finish: Smooth.Paper weight: 24 lbs..Acid free and made from water soluble dyes.Envelopes are a refreshing color that will be welcomed in any mailbox.Adds a pop of color to your promotional mail

JAM Paper® Violet Recycled Open End Catalog Clasp Paper Envelopes are made out of high quality, smooth, 24lb, 30% recycled paper! This pack contains an even total of 10 envelopes. To keep the contents placed inside of them secure, these envelopes feature commercial style flaps and reliable, easy-to-use metal clasp closures. Each one also has an optional used gum closure for additional reinforcement. If you're looking for an envelope that will add a unique touch of style to your mailings or to your work place, your search has ended! These envelopes feature a bright, bold, and beautiful violet purple color! Their 9 x 12 inches in size makes them ideal for enclosing standard sized documents with no need for folding!.Violet.Size: 9" x 12".Closure: Clasp.Opening: Open end.Material: Paper.Envelope flap: Straight.Finish: Smooth.Paper weight: 24 lbs..Acid free and made from water soluble dyes.Envelopes are a refreshing color that will be welcomed in any mailbox.Adds a pop of color to your promotional mail.JAM Paper® 9" x 12" Violet clasp envelope is made out of 24 lbs sturdy paper and has a gum with a metal clasp.

JAM Paper® Sea Blue 9 x 12 Open End Catalog with Clasp Closure Envelopes are made out of high quality, smooth, 30% recycled, 24lb paper. This pack contains 10 envelopes. At 9 x 12 inches in size, these envelopes are perfect for enclosing standard sized sheets of paper without folding or creating creases! Each one features a bright shade of sea blue! To keep the contents placed inside secure while in transport, these envelopes have commercial style flaps and reliable, easy-to-use metal clasp closure. Each one also has an optional-use gum closure for additional reinforcement. Use these blue envelopes to mail letters, promotional materials, and more!.Sea blue.Size: 9" x 12".Closure: Clasp.Opening: Open end.Material: Paper.Envelope flap: Straight.Finish: Smooth.Paper weight: 24 lbs..Adds a pop of color to your promotional mail.JAM Paper® 9" x 12" Sea blue clasp envelope is made of 24 lbs sturdy paper and features a square gummed flap, sold as 10 per pack.

Are you looking for a pack of high-quality envelopes for business documents, letters of recommendation, applications, booklets, folders, magazines, catalogs, brochures, and more? These envelopes are versatile, easily transitioning from formal to playful depending on what you need. The rectangular-style back flap adds a professional touch that you won’t find with other sets of similar envelopes. Best of all, these envelopes feature a peel-and-press sealing method! Simply remove the adhesive strip on the inside of the back flap and press down to seal your envelopes. You’ll get a great seal every time, no moistening required. The 80 lb. text-weight envelopes are an excellent choice because they’re about twice as thick as regular printer paper, so they will both protect and conceal whatever you place inside them. The sturdy and durable thickness is perfect for shipping long distances, so you won’t have to worry about bending or tearing. When printed on, LUX envelopes are complemented with a wide variety of ink colors. You won’t have to worry about paper jams, tears, or ink smears with these envelopes. They’re designed for compatibility with laser and inkjet home printers. No matter what you address these envelopes with, you’ll be impressed with the high-quality, smudge-proof paper. These large envelopes measure 9” x 12” (229 mm x 305 mm). Purchase multiple sets of these envelopes in a wide variety of colors for your business, home office, and more. LUX 80 lb. Citrus envelopes are a durable and high-quality option for all your party-planning needs. Purchase a package of 50, 250, 500, or 1000 today!.OPEN-END ENVELOPE: These open-end 9” x 12” catalog envelopes have a convenient vertical design. Use.PEEL & PRESS SEAL: The self-seal design of these envelopes is perfect for anyone who doesn’t want to.PRINTABLE & CUSTOMIZABLE: If you want to customize or label your envelopes with zero hassle, you’re.CLASSIC COLOR: If you want a high-quality envelope, this is the item for you. Made from 80 lb. text-weight paper stock, these envelopes are thicker and more durable than printer paper and will protect whatever is inside. If this shade of yellow isn’t right for you, we offer these envelopes in a variety of other color options as well..DURABLE & RELIABLE: Made from heavyweight LUX paper stock with a sturdy construction, these envelopes are thick and durable, making them perfect for things like letters, professional mailings, personal mail, or catalogs. No matter what you decide to use these envelopes for, whatever is inside is sure to arrive in perfect condition.