Triplast 20 x A4 C4 Manilla Hard Board Back Envelopes (324x229mm) - Cardboard Backed Mailers with Peel & Seal Strip - Rigid Do Not Bend Envelopes for Mailing Posting Shipping & Storing Documents

Triplast Board Back Envelopes Triplast’s board backed “Please do not bend” envelopes are made from 100% recycled material consisting of a 1000 micron solid cardboard backing paired with 120gsm kraft paper front. These heavy duty manilla hard backed envelopes are designed to offer protection against bumps and scrapes in the post ensuring your important documents remain flat, crease-free & safe. They are the ideal choice for mailing legal documents, certificates, contracts, photos, artwork, catalogues, blueprints & more. These do not bend envelopes come with a peel and seal strip offering a quick & secure seal resulting in increased packing speed as you won't need any additional tape or glue to seal. Their light yet robust structure helps you keep your shipping weight in check without compromising on protection. The smooth kraft finish on the front will allow you to either handwrite addresses directly or attach sticky address labels for a more professional look. At Triplast, we stock a complete range of sizes - C3 (for A3 paper), C4 (for A4 paper), C5 (for A5 paper) and C6 (for A6 paper).

• A MAILING ESSENTIAL: These C4 rigid mailers are designed to contain unfolded A4 paper (or A3 paper folded in half) - they're perfect for posting & storing certificates, legal documents, passports, ID cards, photos, artwork, gift cards, currency, etc.
• DO NOT BEND: 120gsm kraft paper (front) & 1000 micron board (back) construction offers all-round protection & rigidity to keep contents flat, crease-free & safe. "Please do not bend" is printed in large red font on the front to caution all handlers.
• QUICK, EASY & SECURE: Built-in peel & seal strip reduces packing time & cost by providing a strong & hassle-free seal while also offering extended shelf-life over self seal envelopes - just remove the strip & press the flap down to seal!
• SAVE ON PACKING & POSTAGE: A more cost-effective & waste-free alternative to all board envelopes, these light yet sturdy card backed envelopes are also cheaper to post. You may write on them directly to eliminate the need for extra address labels.
• ECO-FRIENDLY: Made from 100% recycled material, fully kerbside recyclable & biodegradable - these hard back envelopes are a plastic-free, sustainable & environmentally conscious packaging choice for office, school & home use.