Rectangular Envelopes
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Envelope Size
Envelope Type
Envelope Closure
Envelope Number
Envelope Material
Item # : 1949161
Model # : 1500RS
ComplyRight CMS-1500 Jumbo Right Window Envelopes prevent processing delays by allowing the sender to mail the forms without folding them.
- Envelope holds up to 50 CMS-1500 unfolded claim forms.
- Helps reduce processing delays.
Price is $41.49
Unit of measure 100/Pack
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Over 30
Item # : 261366
Model # : 3961300
JAM Paper® Size 10 Open end policy paper envelope in a carton of 25 is perfect for greeting cards, invitations, weddings or any announcement and is light baby blue in color.
- Light baby blue
- Size: #10 (4 1/8" x 9 1/2")
Price is $14.49
Unit of measure 25/Pack
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Item # : 261379
Model # : 155623
JAM Paper® A2 Size light baby pink paper invitation envelope in a pack of 25 has dimension of 4 3/8" x 5 3/4" and is perfect for greeting cards, invitations or other announcements.
- Size: A2 (4 3/8" x 5 3/4")
- Closure: Gum
Price is $13.89
Unit of measure 25/Pack
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Item # : 1030018
Model # : 1644-07-50
LUX™ Open end smooth envelope in gold metallic color measuring 6" x 9" is compatible with laser/inkjet printer and has a paper weight of 80 lbs for added strength/quality, sold as 50 per pack.
- 6 x 9 Open End Envelopes are perfect for sending documents/catalogs/direct mail/promotional material/brochures
- Comes in Gold Metallic, 80lb. Text Paper
Price is $61.59
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Over 30
Item # : 24260715
Model # : EX4820-18-50
LUX 6 x 9 Booklet Envelopes in Ruby Red are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 6"L x 9"W
- Comes in Ruby Red
Price is $28.99
Unit of measure 50/Pack
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Item # : 261532
Model # : LEKR850
JAM Paper® A10 Brown kraft paper bag in a pack of 25 is suitable for greeting cards, weddings or any announcements and has a square gummed flap closure.
- Size: A10 (6" x 9 1/2")
- Closure: Gum
Price is $17.69
Unit of measure 25/Pack
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Item # : 24260687
Model # : F-4220-B-50
LUX 6 x 9 Booklet Envelopes in Midnight Black are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 6"L x 9"W
- Comes in Midnight Black
Price is $24.89
Unit of measure 50/Pack
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Over 30
Item # : 24260412
Model # : 44410-50
LUX 10 x 15 Booklet Envelopes in 28lb. Bright White are perfect for Catalogs, Annual Reports, Brochures, Magazines, Invitations and more!
- Dimensions: 10"L x 15"W
- Comes in 28lb. Bright White
Price is $63.69
Unit of measure 50/Pack
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Over 30
Item # : 24260571
Model # : E4820-00-50
LUX 6 x 9 Booklet Envelopes in Clear Translucent are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 6"L x 9"W
- Comes in Clear Translucent
Price is $31.19
Unit of measure 50/Pack
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Item # : 24261193
Model # : EX4820-14-50
LUX 6 x 9 Booklet Envelopes in Candy Pink are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 6"L x 9"W
- Comes in Candy Pink
Price is $24.95
Unit of measure 50/Pack
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Item # : 24260206
Model # : EX4820-12-50
LUX 6 x 9 Booklet Envelopes in Sunflower are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 6"L x 9"W
- Comes in Sunflower
Price is $28.69
Unit of measure 50/Pack
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Over 30
Item # : 1029963
Model # : 4820-BLI-50
LUX 6 x 9 Booklet Envelopes are the professional way to send flat but bulky materials- pamphlets, brochures, sales literature, booklets, annual reports, magazines, or catalogs.
- 50/Pack
- Black linen
Price is $31.06
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Trending now
Mail your communications in style with a wide range of rectangular envelopes. Whether you're running a home or a business, you'll need mailing supplies. Mail bills, invoices, checks, invitations, documents, and greeting cards using envelopes in a wide variety of sizes, shapes, and colors.
Traditional Business Envelopes
Mail client invoices, checks, and documents with traditional business envelopes. Choose single or double windows and use computer software to print customized checks and invoices that fit those windows. Avoid hand addressing envelopes and save hours of time, or include a blank window envelope with your invoices and make it easier for clients to return payment. Business envelopes come with self-sealing closures or gummed closures. Say goodbye to basic and choose a color that coordinates with your brand. Safety features like a tinted liner make sure your private documents stay that way until they reach the intended recipient.
Formal Stationery
Save money on wedding plans by making your own invitations, and use rectangular envelopes to mail them. Choose a paper color that coordinates with the invitation itself, and opt for traditional invitation sizes, such as 4 3/4 x 11 or 6 x 12. Add a touch of flair with foil-lined envelopes that match the metallic font on your invitations. Stationery envelopes aren't just for weddings: use them to mail company holiday cards, graduation invitations, or notifications of company award events.
Booklet and Document Size
Mail pamphlets, catalogs, closing documents, and other large materials with rectangular mailing envelopes. Pick from traditional brown paper construction or lined vellum that keeps the contents safe until they reach the desired recipient. Many mailing envelopes include a top closure, and some are self-sealing with detachable tops. Whatever your purpose and style, there's a rectangular mailing envelope that works for you.
Traditional Business Envelopes
Mail client invoices, checks, and documents with traditional business envelopes. Choose single or double windows and use computer software to print customized checks and invoices that fit those windows. Avoid hand addressing envelopes and save hours of time, or include a blank window envelope with your invoices and make it easier for clients to return payment. Business envelopes come with self-sealing closures or gummed closures. Say goodbye to basic and choose a color that coordinates with your brand. Safety features like a tinted liner make sure your private documents stay that way until they reach the intended recipient.
Formal Stationery
Save money on wedding plans by making your own invitations, and use rectangular envelopes to mail them. Choose a paper color that coordinates with the invitation itself, and opt for traditional invitation sizes, such as 4 3/4 x 11 or 6 x 12. Add a touch of flair with foil-lined envelopes that match the metallic font on your invitations. Stationery envelopes aren't just for weddings: use them to mail company holiday cards, graduation invitations, or notifications of company award events.
Booklet and Document Size
Mail pamphlets, catalogs, closing documents, and other large materials with rectangular mailing envelopes. Pick from traditional brown paper construction or lined vellum that keeps the contents safe until they reach the desired recipient. Many mailing envelopes include a top closure, and some are self-sealing with detachable tops. Whatever your purpose and style, there's a rectangular mailing envelope that works for you.