PLEASE DO NOT BEND HARD ENVELOPES CARD BOARD BACKED MANILA BROWN A3 /A4 /A5 /A6
C5 / A5 – 229 x 162 mm. C5+ / A5+ – 238 x 163 mm. C6 / A6 – 162 x 114 mm. C6+ / A6+ – 190 x 140 mm. C3 / A3 – 457 x 324 mm. C4 / A4 – 324 x 229 mm. C4+ / A4+ – 352 x 249 mm. Board Backed Envelopes.