... EX courier bag, good security & permanent adhesive bag. 3.anti-static,customise logo express ba Poly courier bag, express bag, and mailing bag, express delivery bag, mailer bag, ... , can be recycled.4) Usage: for post, delivery packing, express delivery, courier mailing and deposit packing.5) Style: with permanent adhesive ... materials, OPP, PP, HDPE, LDPE, CPP, PPU, PVC, PE/PO, PO/PE, CPE and EVA, etc.