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  • New Guardian C27013 Envelopes Heavyweight Pocket Peel and Seal Manilla C3 [Pack of 125]
    New Guardian C27013 Envelopes ...
    New Guardian - A strong two-tone manilla paper that safeguards important conte... New Guardian - A strong two-tone manilla paper that safeguards important contents and offers premium protection for important Mail C3 size Subtle two-tone sheen finish paper for better presentation Features peel & Seal closure for an even more secure... more
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  • New Guardian Envelopes Heavyweight Board-backed Peel and Seal Manilla C3 [Pack of 50]
    New Guardian Envelopes Heavywe...
    New Guardian - A strong two-tone manilla paper that safeguards important conte... New Guardian - A strong two-tone manilla paper that safeguards important contents and offers premium protection for important Mail C3 size Subtle two-tone sheen finish paper for better presentation Features peel & Seal closure for an even more secure... more
    Details
  • Hard Board Backed Envelopes Peel & Seal Mailing Posting & Storing Documents Manilla Do Not Bend Cardboard Secure Postal Envelope (C6 (162x114mm), 250 Envelopes)
    Hard Board Backed Envelopes Pe...
    Protect your valuable documents and keep them safe during transit with our Boa... Protect your valuable documents and keep them safe during transit with our Board Backed Envelopes. These sturdy and reliable envelopes are designed to provide superior protection against bending, folding, or damage. Each Board Backed Envelope features... more
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  • Triplast 100 x A3 C3 Manilla Hard Board Back Envelopes (457 x 324mm) - Cardboard Backed Please Do Not Bend Envelope with Peel & Seal Strip - Perfect for Mailing, Posting & Storing Important Documents
    Triplast 100 x A3 C3 Manilla H...
    A MAILING ESSENTIAL: These C3 rigid mailers are designed to contain unfolded A... A MAILING ESSENTIAL: These C3 rigid mailers are designed to contain unfolded A3 paper (or A2 paper folded in half) - they're perfect for posting & storing certificates, legal documents, passports, ID cards, photos, artwork, gift cards, currency, etc.... more
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  • AKAR A3/C3-321x467mm -[Pack of 100] Strong Rigid Cardboard Envelopes/Cardboard C3 Envelope, Heavy Duty 400gsm,Corrugated Capacity Book Mailers,Peel & Seal, Rip & Strip Open Capacity A3 Book Mailler
    AKAR A3/C3-321x467mm -[Pack of...
    AKAR A3/C3-321x467mm -[Pack of 100] Strong Rigid Cardboard Envelopes/Cardboard... AKAR A3/C3-321x467mm -[Pack of 100] Strong Rigid Cardboard Envelopes/Cardboard C3 Envelope, Heavy Duty 400gsm,Corrugated Capacity Book Mailers,Peel & Seal, Rip & Strip Open Capacity A3 Book Mailler more
    Details
  • AKAR A3/C3-321x467mm -[ Pack of 50] Strong Rigid Cardboard Envelopes/Cardboard C3 Envelope, Heavy Duty 400gsm,Corrugated Capacity Book Mailers,Peel & Seal, Rip & Strip Open Capacity A3 Book Mailler
    AKAR A3/C3-321x467mm -[ Pack o...
    AKAR A3/C3-321x467mm -[ Pack of 50] Strong Rigid Cardboard Envelopes/Cardboard... AKAR A3/C3-321x467mm -[ Pack of 50] Strong Rigid Cardboard Envelopes/Cardboard C3 Envelope, Heavy Duty 400gsm,Corrugated Capacity Book Mailers,Peel & Seal, Rip & Strip Open Capacity A3 Book Mailler more
    Details
  • Triplast 200 x A3 C3 Manilla Hard Board Back Envelopes (457 x 324mm) - Cardboard Backed Please Do Not Bend Envelope with Peel & Seal Strip - Perfect for Mailing, Posting & Storing Important Documents
    Triplast 200 x A3 C3 Manilla H...
    A MAILING ESSENTIAL: These C3 rigid mailers are designed to contain unfolded A... A MAILING ESSENTIAL: These C3 rigid mailers are designed to contain unfolded A3 paper (or A2 paper folded in half) - they're perfect for posting & storing certificates, legal documents, passports, ID cards, photos, artwork, gift cards, currency, etc.... more
    Details
  • AKAR A3/C3-321x467mm -[ Pack of 200 ] Strong Rigid Cardboard Envelopes/Cardboard C3 Envelope, Heavy Duty 400gsm,Corrugated Capacity Book Mailers,Peel & Seal, Rip & Strip Open Capacity A3 Book Mailler
    AKAR A3/C3-321x467mm -[ Pack o...
    AKAR A3/C3-321x467mm -[ Pack of 200 ] Strong Rigid Cardboard Envelopes/Cardboa... AKAR A3/C3-321x467mm -[ Pack of 200 ] Strong Rigid Cardboard Envelopes/Cardboard C3 Envelope, Heavy Duty 400gsm,Corrugated Capacity Book Mailers,Peel & Seal, Rip & Strip Open Capacity A3 Book Mailler more
    Details
  • 50 Large A3 C3 Size Strong Hard Board Backed Envelopes 'Do Not Bend' Peel + Seal - 324 x 457mm / 12.75 x 18" Rigid Postal Packing Mailing Shipping Postage Posting Self Seal Packaging Mailers
    50 Large A3 C3 Size Strong Har...
    Strong hard board backed self seal envelopes, rigid / stiff mailers These high... Strong hard board backed self seal envelopes, rigid / stiff mailers These high quality board backed envelopes are useful for the home or office. Ideal to protect any important documents or items sent through the post. These envelopes come with an... more
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  • Q-Connect C3 Envelope 450x324mm Board Back Peel and Seal 115gsm Manilla (50 Pack)
    Q-Connect C3 Envelope 450x324m...
    Designed to keep important documents flat and protected in transit, these Q-Co... Designed to keep important documents flat and protected in transit, these Q-Connect Board Back Envelopes are printed with 'Please do not bend.' The envelopes are made from heavyweight 115gsm manilla with a peel and seal closure. This pack contains 50... more
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  • EPOSGEAR A3/C3 White All Board Calendar Card Envelopes 457mm x 330mm (Peel & Seal, 100 Pack)
    EPOSGEAR A3/C3 White All Board...
    High quality white C3 all board envelopes with a Peel & Seal flap for ease of ... High quality white C3 all board envelopes with a Peel & Seal flap for ease of use. These All-Board mailers are manufactured in quality 450 micron / 350 gsm GD2 fully coated white lined chip board. A heavy duty white board envelope, manufactured with... more
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  • Blake Purely Packaging C3 450 x 324 mm Matt Metallic Padded Bubble Envelopes Peel & Seal (MTCAR450) Caribbean Blue - Pack of 50
    Blake Purely Packaging C3 450 ...
    Make a difference to your mail with these Matt Metallic Purely Packaging Bubbl... Make a difference to your mail with these Matt Metallic Purely Packaging Bubble Envelopes by Blake Made from quality 70 Micron thickness plastic for extra durability, whilst the air bubble protection ensures contents arrive safely. Strong Peel & Seal... more
    Details
  • Gusset Envelopes 457 x 324 x 30mm C3 Peel and Seal Manilla 140gsm - Pack of 250
    Gusset Envelopes 457 x 324 x 3...
    Gusset envelopes are ideal for storing and posting bulkier items Peel & Seal s... Gusset envelopes are ideal for storing and posting bulkier items Peel & Seal sealing offers ease of use and efficiency for large tasks Dimensions of gusset is 30mm Envelopes made from 140gsm paper providing added thickness and extra quality Suitable... more
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  • Blake Purely Packaging C3 450 x 324 mm Matt Metallic Padded Bubble Envelopes Peel & Seal (MTMG450) Metallic Gold - Pack of 50
    Blake Purely Packaging C3 450 ...
    Make a difference to your mail with these Matt Metallic Purely Packaging Bubbl... Make a difference to your mail with these Matt Metallic Purely Packaging Bubble Envelopes by Blake Made from quality 70 Micron thickness plastic for extra durability, whilst the air bubble protection ensures contents arrive safely. Strong Peel & Seal... more
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  • Keepsafe Envelope Extra Strong Polythene Opaque C3 W335xH430mm Peel & Seal Ref KSV-MO4 [Box 100]
    Keepsafe Envelope Extra Strong...
    Keepsafe Envelope Extra Strong Polythene Opaque C3 W335xH430mm Peel & Seal Ref... Keepsafe Envelope Extra Strong Polythene Opaque C3 W335xH430mm Peel & Seal Ref KSV-MO4 [Box 100] more
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  • Blake Purely Packaging C3+ 330 x 430 mm Polypost Polythene Mailing Bag Envelopes Peel & Seal (PE74/W) White - Pack of 100
    Blake Purely Packaging C3+ 330...
    Weather, Water and Burst Proof to protect contents Strong permanent peel and s... Weather, Water and Burst Proof to protect contents Strong permanent peel and seal flap for convenience and security Tear and Puncture Proof to protect and secure contents Extra Strong Co-Ex 70 micron polythene more
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  • Gusset Envelopes 457 x 324 x 30mm C3 Peel and Seal White 140gsm - Pack of 250
    Gusset Envelopes 457 x 324 x 3...
    Gusset envelopes are ideal for storing and posting bulkier items Peel & Seal s... Gusset envelopes are ideal for storing and posting bulkier items Peel & Seal sealing offers ease of use and efficiency for large tasks Dimensions of gusset is 30mm Envelopes made from 140gsm paper providing added thickness and extra quality Suitable... more
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  • EPOSGEAR® A3 / C3 457mm x 324mm Brown/Manilla Strong Hard Card Board Backed Peel and Seal Printed Please Do Not Bend Envelopes (200)
    EPOSGEAR® A3 / C3 457mm x 324...
    Brand new high quality 120gsm Manilla board-backed envelopes. Envelopes read "... Brand new high quality 120gsm Manilla board-backed envelopes. Envelopes read "Please Do Not Bend" in red text. Ideal for sending important documents and other items which require care whilst handling. Peel & Seal function on the envelopes provide... more
    Details
  • Gusset Envelopes 457 x 324 x 30mm C3 Peel and Seal Manilla 140gsm - Pack of 125
    Gusset Envelopes 457 x 324 x 3...
    Gusset envelopes are ideal for storing and posting bulkier items Peel & Seal s... Gusset envelopes are ideal for storing and posting bulkier items Peel & Seal sealing offers ease of use and efficiency for large tasks Dimensions of gusset is 30mm Envelopes made from 140gsm paper providing added thickness and extra quality Suitable... more
    Details
  • EPOSGEAR A3/C3 White All Board Calendar Card Envelopes 457mm x 330mm (Peel & Seal, 200 Pack)
    EPOSGEAR A3/C3 White All Board...
    High quality white C3 all board envelopes with a Peel & Seal flap for ease of ... High quality white C3 all board envelopes with a Peel & Seal flap for ease of use. These All-Board mailers are manufactured in quality 450 micron / 350 gsm GD2 fully coated white lined chip board. A heavy duty white board envelope, manufactured with... more
    Details
  • Blake Purely Packaging C3 (A3) 450 x 324 mm Board Back Pocket Peel & Seal Envelopes (4200) Manilla - Pack of 100
    Blake Purely Packaging C3 (A3)...
    Make a difference to your mail with these Purely Packaging Board Back envelope... Make a difference to your mail with these Purely Packaging Board Back envelopes by Blake Heavy Duty Board Back to protect certificates, photographs, prints and more Strong Peel & Seal closure for ease of use, additional security and longer shelf life... more
    Details
  • Blake Purely Packaging C3 450 x 324 mm Matt Metallic Padded Bubble Envelopes Peel & Seal (MTA450) Metallic Silver - Pack of 50
    Blake Purely Packaging C3 450 ...
    Make a difference to your mail with these Matt Metallic Purely Packaging Bubbl... Make a difference to your mail with these Matt Metallic Purely Packaging Bubble Envelopes by Blake Made from quality 70 Micron thickness plastic for extra durability, whilst the air bubble protection ensures contents arrive safely. Strong Peel & Seal... more
    Details
  • Blake Purely Packaging C3 450 x 324 mm Peel and Seal Metallic Padded Bubble Envelopes (MBB450) Oil Black - Pack of 50
    Blake Purely Packaging C3 450 ...
    Make a difference to your mail with these metallic Blake Purely Packaging Bubb... Make a difference to your mail with these metallic Blake Purely Packaging Bubble Envelopes by Blake Air bubble protection ensures contents arrive safely. Strong Peel & Seal closure for ease of use, additional security and longer shelf life Water... more
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  • EPOSGEAR® A3 / C3 457mm x 324mm Brown/Manilla Strong Hard Card Board Backed Peel and Seal Printed Please Do Not Bend Envelopes (100)
    EPOSGEAR® A3 / C3 457mm x 324...
    Brand new high quality 120gsm Manilla board-backed envelopes. Envelopes read "... Brand new high quality 120gsm Manilla board-backed envelopes. Envelopes read "Please Do Not Bend" in red text. Ideal for sending important documents and other items which require care whilst handling. Peel & Seal function on the envelopes provide... more
    Details
  • Blake Purely Everyday C3 450 x 324 mm 115 gsm Pocket Peel & Seal Envelopes (23872) Manilla - Pack of 125
    Blake Purely Everyday C3 450 x...
    Secure Peel And Seal Closure For Ease Of Use, Added Security And Extra Shelf L... Secure Peel And Seal Closure For Ease Of Use, Added Security And Extra Shelf Life High Quality 115 Gsm Paper Ideal For Business Correspondance, Letters, Brochures And More Paper Size: C3 Paper Finish: Uncoated Basketweave Pocket Envelopes Peel And Seal... more
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  • Blake Purely Everyday C3 450 x 324 mm 120 gsm Pocket Peel & Seal Envelopes (8086) White - Pack of 125
    Blake Purely Everyday C3 450 x...
    Peel and Seal High quality weight paper Suitable for brochures, catalogues etc... Peel and Seal High quality weight paper Suitable for brochures, catalogues etc. High quality 120 gsm paper Color: White Number of items: 125.0 Package Weight: 5.259 kilograms Package Dimensions: 47.0 L x 9.8 H x 33.8 W (centimeters) more
    Details
  • Blake Purely Packaging C3 (A3) 450 x 324 mm Board Back Pocket Peel & Seal Envelopes (5200) White - Pack of 100
    Blake Purely Packaging C3 (A3)...
    Make a difference to your mail with these Purely Packaging Board Back envelope... Make a difference to your mail with these Purely Packaging Board Back envelopes by Blake Heavy Duty Board Back to protect certificates, photographs, prints and more Strong Peel & Seal closure for ease of use, additional security and longer shelf life... more
    Details
  • Blake Purely Packaging C3 450 x 324 mm Matt Metallic Padded Bubble Envelopes Peel & Seal (MTGG450) Graphite Grey - Pack of 50
    Blake Purely Packaging C3 450 ...
    Make a difference to your mail with these Matt Metallic Purely Packaging Bubbl... Make a difference to your mail with these Matt Metallic Purely Packaging Bubble Envelopes by Blake Made from quality 70 Micron thickness plastic for extra durability, whilst the air bubble protection ensures contents arrive safely. Strong Peel & Seal... more
    Details
  • K-ONE Hard Board Backed Envelopes Do Not Bend A3 C3 Manilla 457mm x 324mm Self Peel and Seal for Office Home and Ecommerce (Pack of 100)
    K-ONE Hard Board Backed Envelo...
    High Quality Self Seal adhesive strip Not Bend Envelope, gives an extra securi... High Quality Self Seal adhesive strip Not Bend Envelope, gives an extra security. Approx. Size: 457mm x 324mm A3/C3 Manilla. Quick and Easy packaging 100% Environment friendly as they made from recycled materials. Thickness: 120 Gsm PEFC-certified Eco... more
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  • Indigo C2 & C3 White All Board Envelopes with Peel and Seal Strip C2 444 x 625mm C3 324 x 458mm (C2 Qty 50)
    Indigo C2 & C3 White All Board...
    All Board Envelopes are a high-quality option for sending card, paper, and oth... All Board Envelopes are a high-quality option for sending card, paper, and other thin items. They are white cardboard envelopes which feature a peel and seal strip and a pre-folded flap to make sending documents quick and easy. Their smooth coated... more
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