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  • 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
  • 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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  • EPOSGEAR 50 Silver Shiny Metallic Foil Bubble Padded Bag Mailing Envelopes - Perfect for Marketing, Promotions or and Alternative to Gift wrap (A3 / C3-450mm x 320mm)
    EPOSGEAR 50 Silver Shiny Metal...
    Brand new padded envelopes with a shiny metallic finish. Peel and Seal functio... Brand new padded envelopes with a shiny metallic finish. Peel and Seal function on the envelopes provides secure closure. The envelopes are light weight keeping postage costs to a minimum. They also feature a bubble lining for added protection. Ideal... 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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  • Trojan A3 C3 457 x 324mm Hard Do Not Bed Board Backed Envelopes (Pack of 1000)
    Trojan A3 C3 457 x 324mm Hard ...
    Made from Heavy Duty Solid Board To Protect Prints, Photos, Documents and More... Made from Heavy Duty Solid Board To Protect Prints, Photos, Documents and More 100% Recyclable Peel & Seal Closure For Superb Security Printed 'Please Do Not Bend' for safety 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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  • Blake TS-130001 DL Purely Everyday Self Seal Envelope, 80gsm, 110mm x 220mm, White, Pack of 1000
    Blake TS-130001 DL Purely Ever...
    Dimension: 110mm x 220mm Product sizes from DL to C3 Quality grade paper from ... Dimension: 110mm x 220mm Product sizes from DL to C3 Quality grade paper from 80g to 120g white cartridge Power-seal peel & seal for extended shelf life and tamper proof security Attractive blue opaque more
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  • EPOSGEAR 50 Purple Shiny Metallic Foil Bubble Padded Bag Mailing Envelopes - Perfect for Marketing, Promotions or and Alternative to Gift wrap (A3 / C3-450mm x 320mm)
    EPOSGEAR 50 Purple Shiny Metal...
    Brand new padded envelopes with a shiny metallic finish. Peel and Seal functio... Brand new padded envelopes with a shiny metallic finish. Peel and Seal function on the envelopes provides secure closure. The envelopes are light weight keeping postage costs to a minimum. They also feature a bubble lining for added protection. Ideal... more
    Details
  • Please Do Not Bend Envelopes, Hard Card Board Backed Mailer, Manilla Brown, A3 C3 (Pack of 125)
    Please Do Not Bend Envelopes, ...
    High Quality Strong Peel & Seal adhesive strip Gives a professional and secure... High Quality Strong Peel & Seal adhesive strip Gives a professional and secure finish for your product. One envelope weight - 110 gr. These envelopes is ideal option for sending important paper work or other documents Dimensions : Width - 457mm Height... more
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  • Please Do Not Bend Envelopes, Hard Card Board Backed Mailer, Manilla Brown, A3 C3 (Pack of 200)
    Please Do Not Bend Envelopes, ...
    High Quality Strong Peel & Seal adhesive strip Gives a professional and secure... High Quality Strong Peel & Seal adhesive strip Gives a professional and secure finish for your product. One envelope weight - 27gr. 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
  • 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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  • EPOSGEAR 100 Black Shiny Metallic Foil Bubble Padded Bag Mailing Envelopes - Perfect for Marketing, Promotions or and Alternative to Gift wrap (A3 / C3-450mm x 320mm)
    EPOSGEAR 100 Black Shiny Metal...
    Brand new padded envelopes with a shiny metallic finish. Peel and Seal functio... Brand new padded envelopes with a shiny metallic finish. Peel and Seal function on the envelopes provides secure closure. The envelopes are light weight keeping postage costs to a minimum. They also feature a bubble lining for added protection. Ideal... more
    Details
  • EPOSGEAR 100 Gold Shiny Metallic Foil Bubble Padded Bag Mailing Envelopes - Perfect for Marketing, Promotions or and Alternative to Gift wrap (A3 / C3-450mm x 320mm)
    EPOSGEAR 100 Gold Shiny Metall...
    Brand new padded envelopes with a shiny metallic finish. Peel and Seal functio... Brand new padded envelopes with a shiny metallic finish. Peel and Seal function on the envelopes provides secure closure. The envelopes are light weight keeping postage costs to a minimum. They also feature a bubble lining for added protection. Ideal... more
    Details
  • 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
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  • Blake Purely Packaging C3 450 x 324 mm Matt Metallic Padded Bubble Pocket Envelopes Peel & Seal (MTWR450) Bordeaux - 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
  • 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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  • 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
    Details
  • EPOSGEAR Black Matt Matte Metallic Foil Bubble Wrap Lined Padded Mailing Gift Bags Envelopes (100, C3 (450mm x 324mm))
    EPOSGEAR Black Matt Matte Meta...
    Brand new padded envelopes with a matte metallic finish. Peel and Seal functio... Brand new padded envelopes with a matte metallic finish. Peel and Seal function on the envelopes provides secure closure. The envelopes are light weight keeping postage costs to a minimum. They also feature a bubble lining for added protection. Ideal... more
    Details
  • ODL Packaging 200 C3/A3 Board Backed Envelopes Manilla 457mm x 324mm
    ODL Packaging 200 C3/A3 Board ...
    115gsm Kraft Paper Front /550gsm Back Board Hot melt peel and seal strips for ... 115gsm Kraft Paper Front /550gsm Back Board Hot melt peel and seal strips for a strong self seal Manilla Basket Weave printed Please do not bend in Red 115gsm Kraft Paper Front /550gsm Back Board Rigid board keeps important documents safe more
    Details
  • Please Do Not Bend Envelopes, Hard Card Board Backed Mailer, Manilla Brown, A3 C3(Pack of 500)
    Please Do Not Bend Envelopes, ...
    High Quality Strong Peel & Seal adhesive strip Gives a professional and secure... High Quality Strong Peel & Seal adhesive strip Gives a professional and secure finish for your product. One envelope weight - 110 gr. These envelopes is ideal option for sending important paper work or other documents Dimensions : Width - 457mm Height... more
    Details
  • 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
    Details
  • 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
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  • 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
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