A6 A5 A4 A3 HARD BOARD BACKED PEEL + SEAL ENVELOPES ALL SIZES/QTYS - DO NOT BEND
C5 / A5 Board Back Envelopes - 229x162mm. C3 / A3 Board Back Envelopes - 457x324mm. C6 / A6 Board Back Envelopes - 162x114mm. ALL ENVELOPES ARE SELF SEAL, WITH A PEEL OFF ADHESIVE STRIP. C4 / A4 Board Back Envelopes - 324x229mm.