... & tearing resistant c.customized size,logo d.recycle transparent post bags self adhesive polycourier bag and mailing bag, express ... delivery bag, mailer bag, post envelope: materialLDPE or HDPE coextrusion materialthickness0.05-0.12mmbag ... make it as EPI, OXO biodegradable.2>size: according to client's specific request, costomised.3>usage: express delivery, post, mailer ...