Heavy duty board back envelopes in white and manilla, made using 1000 micron backing board and a heavyweight face paper to ensure protection when posting bendable items.. - These envelopes are boxed with their flaps folded down.. - These envelopes have external side seams. - One of the most secure ways to seal an envelope, peel away the release tape from the flap to reveal a strip of latex and press down to form an instant bond.. Features. Self-adhesive closure. Yes. Media weight. 120 g/m². Window. No. Product colour. Brown. Envelope format (ISO 269). C3 (368 x 444 mm). Weight & dimensions. Length. 444 mm. Width. 368 mm. General. Product family. Purely. Product series. Packaging
