Gas Cylinder Labels
7 results1 x 1" Pictogram - Gas Cylinder Labels. Boldly display instructions and warnings with pressure sensitive labels. Table top dispensers available stock numbers SL9506, SL9512 and SL9518. Wall Mount dispensers available stock numbers LDM300, LDM450, LDM850 and LDM1250. 500 per roll..Boldly display instructions and warnings with pressure sensitive labels..Table top dispensers available stock numbers SL9506, SL9512 and SL9518.Wall Mount dispensers available stock numbers LDM300, LDM450, LDM850 and LDM1250
National Marker "Empty Cylinder Do Not Use" Accident prevention tag with brass grommets warns on potential hazards. Tag includes self-locking nylon fasteners and complies with all safety regulations, sold as 25 per pack..Sold in 25 Packs.With Brass Grommets.Complies With All Safety Regulations.Warn off potential hazards and provide information on the job site. Tags sold in packs of 25 and includes self-locking nylon fasteners..National Marker "Empty Cylinder Do Not Use" Accident prevention tag with grommet measures 6" x 3" and is made of unrippable vinyl material for enhanced durability, sold as 25 per pack.
Accuform Signs® "CYLINDER EMPTY IN USE/FULL" RP-plastic cylinder tag is separated by a perforated line that helps in removing a section for temporary changes. Tag is written in white text on red which provides high visibility, sold as 25 per pack..Size: 5 3/4"(L) x 3 1/4"(W).15-mil (RP-plastic) rigid plastic material.Legend: "CYLINDER EMPTY IN USE/FULL".Package: 25/pack.Sign language: English.Compressed air signs identify the dangers of compressed air vessels and supply line pressures.High-strength plastic tags are water resistant to withstand weather conditions.Tear-resistant, weather-resistant and chemical resistant for dirty and greasy environments.Relatively bendable.Mar-resistant, matte surface.Top has 3/8" hole reinforced with metal grommet to prevent pull off.Writable surface is abrasion resistant.Rigid plastic is flexible, yet will not readily break down over a wide temperature range.Ideal for indoor and outdoor temporary tagging applications.Flexible, yet durable - withstands stretching and ripping.Warranty: 30 days limited.Safety Tag.High-strength rigid plastic tags suitable for use in tough industrial environments.Mar-resistant, matte surface is easy to write on with pen or marker.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "CYLINDER EMPTY IN USE/FULL" 5 3/4" x 3 1/4" Cylinder tag includes 3/8" hole for easy fastening and is made of 10 mil RP-plastic material, sold as 25 per pack.
Accuform Signs® "CYLINDER EMPTY IN.." PF-Cardstock cylinder tag is separated by a perforated line that helps in removing a section for temporary changes. Tag is written in white text on red tag which provides high visibility, sold as 25 per pack..Size: 5 3/4"(L) x 3 1/4"(W).10-mil (PF-cardstock) polyolefin-based material.Legend: "CYLINDER EMPTY IN USE/FULL".Package: 25/pack.Sign language: English.Compressed air signs identify the dangers of compressed air vessels and supply line pressures.Top has 3/8" plain hole.Pulp-free no wood pulp or paper content unlike regular cardstock.Pliable, yet will not rip or breakdown in moisture.Do not tear readily when tugged on.Ideal for indoor use and short term outdoor exposure.Scuff-resistant matte surface is easy to write on.Warranty: 30 days limited.Safety Tag.Thin and flexible 10-mil poly-based material contains no wood-based, paper content.Tear-resistant, waterproof matte surface is easy to write on with pen or marker, and will not crack, distort, or shrink.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Accuform Signs® "CYLINDER EMPTY IN.." 5 3/4" x 3 1/4" Cylinder tag includes 3/8" hole for easy fastening and is made of 10 mil PF-Cardstock material, sold as 25 per pack.
Provide instructions to employees on the safe use of full and empty cylinders..Aluminum.10"x14".Complies With All Safety Regulations.OSHA Compliant.National Marker "Empty Cylinders Do Not Use" Safety sign measuring 10" x 14" is made of 0.040" aluminum material for durability.
National Marker "Empty Cylinder Do Not Use" Accident prevention tag warns on potential hazards and offers information on the job site. Tag includes self-locking nylon fasteners and complies with all safety regulations, sold as 25 per pack..Sold in 25 Packs.Without Grommets.Complies With All Safety Regulations.Warn off potential hazards and provide information on the job site. Tags sold in packs of 25 and includes self-locking nylon fasteners..National Marker "Empty Cylinder Do Not Use" Accident prevention tag measures 6" x 3" and is made of unrippable vinyl material for enhanced durability, sold as 25 per pack.
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Accuform Signs® "Notice" RP-Plastic safety tag in black/blue on white is used during maintenance preventing machine operation/power activation. Tag has two blanked line area at bottom that is labeled as signed by and date, sold as 25 per pack..Size: 5 3/4"(L) x 3 1/4"(W).Legend: "Notice".Package: 25/pack.Language: English.Durable tag withstands pulls and tears in dirt and grease environments.High-strength plastic tags are water resistant to withstand weather conditions.Rigid plastic is flexible, yet will not readily break down over a wide temperature range.Good for indoors and outdoors use, writable surface is abrasion resistant.15-mil rigid plastic material, flexible, yet durable - withstands stretching and ripping, top has 3/8" hole reinforced with metal grommet to prevent pull off.Mar-resistant, matte surface is easy to write on with pen or marker.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Warranty: 30 days limited.Safety Tag.High-strength rigid plastic tags suitable for use in tough industrial environments.Top has 3/8" hole reinforced with metal grommet.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "Notice" 5 3/4" x 3 1/4" RP-Plastic safety tag has dia hole of 3/8" for easy installation and with blank front/back provides a way to attach a customized caution to improve safety, sold as 25 per pack.
Accuform Signs® "SAFETY.." RP-Plastic status tag features a blank grid that has four columns with headers that read "Date", "By", "Date" and "By". 5 3/4" x 3 1/4" Tag has 3/8" hole for fastening with reinforced metal grommet, sold as 25 per pack..Size: 5 3/4"(L) x 3 1/4"(W).Material: RP-plastic.Legend: "SAFETY INSPECTION".Package: 25/pack.Sign language: English.Flexible, yet durable - withstands stretching and ripping.Good for indoors and outdoors use, writable surface is abrasion resistant.High-strength rigid plastic tags suitable for use in tough industrial environments.Front of tag reads, "SAFETY INSPECTION" followed by two blank lined areas labeled "equipment ID" and "location" and a blank grid for writing inspection data.15-mil thick rigid plastic, relatively bendable.Mar-resistant, matte surface is easy to write on with pen or marker.Top has 3/8" hole reinforced with metal grommet.Can be used to display last inspection date and inspection history.Certifications and standards: OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Warranty: 30 days limited.Safety Tag.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "SAFETY.." 5 3/4" x 3 1/4" RP-Plastic status tag in green on white color reads "safety inspection" followed by two blank lined areas with "location" in the front and is made of 15 mil rigid material, sold as 25 per pack.
Accuform Signs® "DO NOT.." RP-Plastic status tag in white/black on red color measuring 5.75" x 3.25" has a thickness of 10 mil. Tag can resist water, chemical and includes signed by and date labels at the bottom, sold as 25 per pack..Size: 5.75"(L) x 3.25"(W).Legend: "DO NOT USE".Package: 25/pack.Sign language: English.Flexible, yet durable - withstands stretching and ripping.Good for indoors and outdoors use, writable surface is abrasion resistant.High-strength rigid plastic tags suitable for use in tough industrial environments.Both sides of tag read, "DO NOT USE" in large white letters with two blank lined areas at the bottom labeled "signed by" and "date".15-mil thick rigid plastic, relatively bendable.Mar-resistant, matte surface is easy to write on with pen or marker.Top has 0.375" hole reinforced with metal grommet.Certifications and standards: OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Warranty: 30 days limited.Safety Tag.15-mil RP-Plastic.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "DO NOT.." 5.75" x 3.25" RP-Plastic status tag in white/black on red color has 0.375" hole for easy installation and prohibits the use of a machine or device with both side reading, sold as 25 per pack.
Accuform Signs® "CAUTION.." Cardstock tag in black/blue on white is used during maintenance preventing machine operation/power activation. Tag has two blanked line area at bottom that is labeled as signed by and date, sold as 25 per pack..Size: 5 3/4"(L) x 3 1/4"(W).Legend: "CAUTION(Blank front and Back)".Package: 25/pack.Language: English.Tear-resistant, waterproof matte surface is easy to write on with pen or marker, and will not crack, distort, or shrink.Tags are pulp free - no wood pulp or paper content - unlike regular cardstock.Tags are pliable, yet will not rip or breakdown in moisture.Tags do not tear readily when tugged on.Ideal for indoor use and short term outdoor exposure.The scuff resistant matte surface is easy to write on.10-mil polyolefin-based material, thin and flexible, top has 3/8" plain hole.Both sides of tag have a blank area for customization, with two blank lined areas at the bottom labeled "Signed By" and "Date".Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Warranty: 30 days limited.Safety Tag.10-mil PF-Cardstock.Thin and flexible 10-mil poly-based material contains no wood-based, paper content.Top has 3/8" plain hole.Accuform Signs® "CAUTION.." 5 3/4" x 3 1/4" Cardstock tag has dia hole of 3/8" for easy installation and with blank front/back provides a way to attach a customized caution to improve safety, sold as 25 per pack.
Accuform Signs® 5 3/4" x 3 1/4" RP-Plastic "CAUTION UNSAFE.." Safety tag has 3/8" hole on top, reinforced with metal grommet to prevent from pull off. Tag is water resistant and flexible to withstand any stretching/ripping, sold as 25 per pack..Legend: "CAUTION UNSAFE DO NOT USE".Size: 5 7/8"(L) x 3 3/8"(W).Language: English.Legend style: Text.RP-plastic: High-strength plastic tags are water resistant to withstand weather conditions, the rigid plastic is flexible, yet will not readily break down over a wide temperature range.Writable surface is abrasion resistant.15-mil rigid plastic material.Flexible, yet durable - withstands stretching and ripping.Top has 3/8" hole reinforced with metal grommet to prevent pull off.Quantity starts at 25 each.Sign option: Standard back B.Application: Good for indoors and outdoors use.High-strength rigid plastic tags suitable for use in tough industrial environments.Mar-resistant, matte surface is easy to write on with pen or marker.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Warranty: 30 days limited.Safety Tag.25/PK.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "CAUTION UNSAFE.." 5 3/4" x 3 1/4" RP-Plastic scaffold tag in black on yellow color can be efficiently used in extreme environments and alert/warn staff to inherent hazards, sold as 25 per pack.
Accuform Signs® "ATTENTION.." RP-Plastic safety tag measuring 5 3/4" x 3 1/4" can resist tear, weather as well as chemical. Tag has matte surface which is easy to write on with pen or marker and has thickness of 15 mil, sold as 25 per pack..Safety Tag.ATTENTION THIS SCAFFOLD WAS BUILT TO MEET SAFETY REGULATIONS IT IS SAFE TO USE.15-mil RP-Plastic.5¾" x 3¼".25/PK.High-strength rigid plastic tags suitable for use in tough industrial environments.Mar-resistant, matte surface is easy to write on with pen or marker.Top has 3/8" hole reinforced with metal grommet.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Black on green.Size: 5 3/4"(L) x 3 1/4"(W).Material: RP-plastic.Legend: "ATTENTION THIS SCAFFOLD WAS BUILT TO MEET SAFETY REGULATIONS IT IS SAFE TO USE".Package: 25/pack.Sign language: English.Flexible, yet durable - withstands stretching and ripping.Good for indoors and outdoors use, writable surface is abrasion resistant.Tear resistant, weather resistant, and chemical resistant for dirty and greasy environments.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "ATTENTION.." 5 3/4" x 3 1/4" RP-Plastic safety tag in black on green color has 3/8" hole for easy installation and alerts staff about the dangers that exist in working environment, sold as 25 per pack.
Accuform Signs® "CAUTION UNSAF.." 5 3/4" x 3 1/4" PF-Cardstock scaffold tag is made of pulp free material and are flexible yet doesn’t break /rip in moisture. Tag has easy to write-on matte surface that are scuff-resistant, sold as 25 per pack..Safety Tag.CAUTION UNSAFE DO NOT USE.10-mil PF-Cardstock.5¾" x 3¼".25/PK.Thin and flexible 10-mil poly-based material contains no wood-based, paper content.Tear-resistant, waterproof matte surface is easy to write on with pen or marker, and will not crack, distort, or shrink.Top has 3/8" plain hole.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Black on yellow.Legend: "CAUTION UNSAFE DO NOT USE".Size: 5 7/8"(L) x 3 3/8"(W).PF-cardstock.Language: English.Legend style: Text.PF-cardstock: Tags are pulp free - no wood pulp or paper content - unlike regular cardstock, they are pliable, yet will not rip or breakdown in moisture, tags do not tear readily when tugged on.Scuff-resistant matte surface is easy to write on.Thin and flexible 10-mil poly-based material contains no wood based, paper content.Accuform Signs® "CAUTION UNSAF.." 5 3/4" x 3 1/4" PF-Cardstock scaffold tag in black on yellow color can be efficiently used in extreme environments and alert/warn staff to inherent hazards, sold as 25 per pack.
Accuform Signs® "CAUTION.." Plastic blank tag is used during maintenance which help prevents machine operation/power activation. Tag has two blanked line area at the bottom that is labeled as signed by and date, sold as 25 per pack..Size: 5 3/4"(L) x 3 1/4"(W).RP-plastic.Legend: "CAUTION(Blank front and "Do Not Remove" Back)".Package: 25/pack.Language: English.Durable tag withstands pulls and tears in dirt and grease environments.High-strength plastic tags are water resistant to withstand weather conditions.Rigid plastic is flexible, yet will not readily break down over a wide temperature range.Good for indoors and outdoors use, writable surface is abrasion resistant.15-mil rigid plastic material, flexible, yet durable - withstands stretching and ripping, top has 3/8" hole reinforced with metal grommet to prevent pull off.Sign option: Standard back B.Front of tag has a blank area for customization, with two blank lined areas at the bottom labeled "Signed By" and "Date".Mar-resistant, matte surface is easy to write on with pen or marker.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Warranty: 30 days limited.Safety Tag.CAUTION (Blank).High-strength rigid plastic tags suitable for use in tough industrial environments.Top has 3/8" hole reinforced with metal grommet.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "CAUTION.." Plastic tag measuring 5 3/4" x 3 1/4" has 3/8" dia hole for strap and provides a way to attach a customized warning to improve safety, sold as 25 per pack.
Accuform Signs® "DANGER..BE REMOVED BY" RP-Plastic lockout tag help to prevent machine operation or power activation during maintenance/repair. Tag measuring 5 3/4" x 3 1/4" is water and chemical resistant, sold as 25 per pack..Safety Tag.DANGER DO NOT OPERATE.15-mil RP-Plastic.5¾" x 3¼".25/PK.High-strength rigid plastic tags suitable for use in tough industrial environments.Mar-resistant, matte surface is easy to write on with pen or marker.Top has 3/8" hole reinforced with metal grommet.Complies with OSHA 29 CFR 1910.147 requirements.Red/black on white.Size: 5 3/4"(L) x 3 1/4"(W).15-mil rigid RP-plastic.Legend: "DANGER DO NOT OPERATE THIS LOCK/TAG MAY ONLY BE REMOVED BY".Package: 25/pack.Sign language: English.High-strength plastic tags are water resistant to withstand weather conditions.Tear-resistant, weather-resistant and chemical resistant for dirty and greasy environments.Relatively bendable.Mar-resistant, matte surface.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "DANGER..BE REMOVED BY" RP-Plastic lockout tag in red/black on white color is used to indicate potential, type or degree of hazard and include dia hole of 3/8" for easy installation, sold as 25 per pack.
National Marker "Full Cylinder Ready For Use" Accident prevention tag warns on potential hazards and offers information on the job site. Tag includes self-locking nylon fasteners and complies with all safety regulations, sold as 25 per pack..Sold in 25 Packs.Without Grommets.Complies With All Safety Regulations.Warn off potential hazards and provide information on the job site. Tags sold in packs of 25 and includes self-locking nylon fasteners..National Marker "Full Cylinder Ready For Use" Accident prevention tag measures 6" x 3" and is made of unrippable vinyl material for enhanced durability, sold as 25 per pack.
Accuform Signs® "DANGER.." Plastic tag with blank front measuring 5 3/4" x 3 1/4" includes a dia hole of 3/8" for quick fastening. Tag is used during maintenance which help prevents machine operation or power activation, sold as 25 per pack..Size: 5 3/4"(L) x 3 1/4"(W).RP-plastic.Legend: "DANGER(Blank Front)".Package: 25/pack.Language: English.Durable tag withstands pulls and tears in dirt and grease environments.High-strength plastic tags are water resistant to withstand weather conditions.Rigid plastic is flexible, yet will not readily break down over a wide temperature range.Good for indoors and outdoors use, writable surface is abrasion resistant.15-mil rigid plastic material, flexible, yet durable - withstands stretching and ripping, top has 3/8" hole reinforced with metal grommet to prevent pull off.Sign option: Standard back B.Mar-resistant, matte surface is easy to write on with pen or marker.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Warranty: 30 days limited.Safety Tag.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "DANGER.." Plastic tag with blank front provides a way to attach a customized warning to improve safety and has red/black/white logo on both sides for higher visibility, sold as 25 per pack.
Accuform Signs® "WARNING" Cardstock tag in black/blue on white is used during maintenance preventing machine operation/power activation. Tag has two blanked line area at bottom that is labeled as signed by and date, sold as 25 per pack..Size: 5 3/4"(L) x 3 1/4"(W).Legend: "WARNING".Package: 25/pack.Language: English.Tear-resistant, waterproof matte surface is easy to write on with pen or marker, and will not crack, distort, or shrink.Tags are pulp free - no wood pulp or paper content - unlike regular cardstock.Tags are pliable, yet will not rip or breakdown in moisture.Tags do not tear readily when tugged on.Ideal for indoor use and short term outdoor exposure.The scuff resistant matte surface is easy to write on.Thin and flexible 10-mil poly-based material contains no wood based, paper content.Both sides of tag have a blank area for customization, with two blank lined areas at the bottom labeled "Signed By" and "Date".Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Warranty: 30 days limited.Safety Tag.10-mil PF-Cardstock.Top has 3/8" plain hole.Accuform Signs® "WARNING" 5 3/4" x 3 1/4" Cardstock tag has dia hole of 3/8" for easy installation and with blank front/back provides a way to attach a customized caution to improve safety, sold as 25 per pack.
Accuform Signs® "DANGER.." Plastic tag with blank front/back measuring 5 3/4" x 3 1/4" includes a dia hole of 3/8" for quick fastening. Tag is used during maintenance which help prevents machine operation or power activation, sold as 25 per pack..Size: 5 3/4"(L) x 3 1/4"(W).Legend: "DANGER(Blank front and Back)".Package: 25/pack.Language: English.Durable tag withstands pulls and tears in dirt and grease environments.High-strength plastic tags are water resistant to withstand weather conditions.Rigid plastic is flexible, yet will not readily break down over a wide temperature range.Good for indoors and outdoors use, writable surface is abrasion resistant.15-mil rigid plastic material, flexible, yet durable - withstands stretching and ripping, top has 3/8" hole reinforced with metal grommet to prevent pull off.Both sides of tag have a blank area for customization, with two blank lined areas at the bottom labeled "Signed By" and "Date".Mar-resistant, matte surface is easy to write on with pen or marker.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Warranty: 30 days limited.Safety Tag.High-strength rigid plastic tags suitable for use in tough industrial environments.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "DANGER.." Plastic tag with blank front/back provides a way to attach a customized warning to improve safety and has red/black/white logo on both sides for higher visibility, sold as 25 per pack.
National Marker "Danger Flammable Material" Accident prevention tag with brass grommets warns on potential hazards. Tag includes self-locking nylon fasteners and complies with all safety regulations, sold as 25 per pack..Sold in 25 Packs.With Brass Grommets.Complies With All Safety Regulations.Warn off potential hazards and provide information on the job site. Tags sold in packs of 25 and includes self-locking nylon fasteners..National Marker "Danger Flammable Material" Accident prevention tag with grommet measures 6" x 3" and is made of unrippable vinyl material for enhanced durability, sold as 25 per pack.
Accuform Signs® "DANGER DO NOT START" RP-Plastic lockout tag has 3/8" hole which is reinforced with metal grommet to prevent pull off. Tag measuring 5 3/4" x 3 1/4" is highly resistant to chemicals, tears or abrasions, sold as 25 per pack..Size: 5 3/4"(L) x 3 1/4"(W).15-mil rigid RP-plastic.Legend: "DANGER DO NOT START".Package: 25/pack.Sign language: English.High-strength plastic tags are water resistant to withstand weather conditions.Tear-resistant, weather-resistant and chemical resistant for dirty and greasy environments.Relatively bendable.Top has 3/8" hole reinforced with metal grommet to prevent pull off.Writable surface is abrasion resistant.Rigid plastic is flexible, yet will not readily break down over a wide temperature range.Ideal for indoor and outdoor temporary tagging applications.Flexible, yet durable - withstands stretching and ripping.Warranty: 30 days limited.Safety Tag.High-strength rigid plastic tags suitable for use in tough industrial environments.Mar-resistant, matte surface is easy to write on with pen or marker.Complies with OSHA 29 CFR 1910.147 requirements.⚠ WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.Accuform Signs® "DANGER DO NOT START" RP-Plastic lockout tag in red/black on white color is ideal to use in tough industrial environments and has matte surface which is easy to write on with pen or marker, sold as 25 per pack.
Accuform Signs® "CAUTION.." Cardstock blank tag is used during maintenance which help prevents machine operation/power activation. Tag has two blanked line area at the bottom that is labeled as signed by and date, sold as 25 per pack..Safety Tag.CAUTION (Blank).10-mil PF-Cardstock.5¾" x 3¼".25/PK.Thin and flexible 10-mil poly-based material contains no wood-based, paper content.Tear-resistant, waterproof matte surface is easy to write on with pen or marker, and will not crack, distort, or shrink.Top has 3/8" plain hole.Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements.Black on yellow.Size: 5 3/4"(L) x 3 1/4"(W).PF-cardstock.Legend: "CAUTION(Blank front and "Do Not Remove" Back)".Package: 25/pack.Language: English.Tags are pulp free - no wood pulp or paper content - unlike regular cardstock.Tags are pliable, yet will not rip or breakdown in moisture.Tags do not tear readily when tugged on.Accuform Signs® "CAUTION.." Cardstock tag measuring 5 3/4" x 3 1/4" has 3/8" dia hole for strap and provides a way to attach a customized warning to improve safety, sold as 25 per pack.