STRONG BROWN MANILLA BOARD BACK BACKED ENVELOPES 'PLEASE DO NOT BEND C3 C4 C5 C6
A4 (C4) 324mm x 229mm. A5 (C5) 229mm x 162mm. A6 (C6) 162mm x 114mm. A3 (C3) 457mm x 324mm. Here’s what you can expect from our envelopes Finish: Coated. Rear: Card backed for rigid protection of contents.