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C4 Board Backed Envelopes

C4 Board Backed Envelopes are perfect for sending important A4 sized documents which need to be kept flat during transit. Our A4 do not bend envelopes have both a rigid backing board and a paper front to make your mail lightweight, keep postage costs to a minimum, and provide excellent protection to your flat items. A peel and seal adhesive strip closure ensures fast and easy packing for you, and provides a secure seal which eliminates the need for any extra adhesives. A4 board backed envelopes are perfect for a large range of needs; available in smart black, plain and printed white with or without a window, or manilla with printed do not bend - all are packed in boxes for neat organisation.

Please note: C4 size is up to 229 x 324mm, designed to fit A4 sized items of 210 x 297mm.

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