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C4 Manilla Board Backed Envelopes are the best solution for sending A4 sized important documents, flat prints or photographs through the post and ensuring they don’t bend whilst in the post. These C4 manilla board backed envelopes combine a strong 120gsm paper front with Please Do Not Bend printed in the bottom left corner for in-transit instructions, and a rigid and robust 1000 micron backing board to ensure your items are kept flat. With a peel and seal adhesive strip closure to make packing fast, giving a strong and reliable seal with no need for extra adhesives. Due to the materials of our C4 manilla board backed envelopes, these envelopes are lightweight and sized to comply with Royal Mail Large Letter sizing to keep your postal costs to a minimum. An excellent eco-friendly solution; completely plastic free, fully recyclable and biodegradable.
Please note: C4 size is up to 229 x 324mm, designed to fit A4 sized items of 210 x 297mm.
