Large smooth white, All Board Envelopes, with dimensions 625mm x 444mm they fit A2 documents perfectly. These smart-looking envelopes are built from premium grade 500 micron, 350gsm, GD2 fully coated chipboard, offering total protection during transit for paper, card and thin items. These board envelopes are fast and simple to secure - peel the self-seal strip, bend the per-folded flap into place and press firm and it’s done. Opening again is even easier, pull the built-in peel-open strip and the contents can be removed. Their coated surface will form a perfect bond when you stick self-adhesive labels.