250 C4 A4 BOARD CARD BACK ROYAL MAIL ENVELOPES 324x229mm HARD BACKED STRONG
250 x A4 C4 SUPERB QUALITY DEFENDA HEAVY DUTY BOARD BACKED ENVELOPES. C4 PiP – 320mm x 230mm x 21mm. Unlike many flimsy board backed envelopes on the market, our range of envelopes are the perfect combination of strength & weight.