STRONG HARD BOARD BACK MANILA ENVELOPES DO NOT BEND A3 A4 A5 A6 SIZES *QUALITY*
Colour: Manila (brown). C6 Board Back Envelopes - 162mm x 114mm. C5 Board Back Envelopes - 229mm x 162mm. C4 Board Back Envelopes - 324mm x 229mm. C3 Board Back Envelopes - 457mm x 324mm.