... -adhesive permanent seal tape outside-white and inside-black plastic courier bags1.Made of PE,multilayer co-extrusion 2.Self-adhesive ... ,ECO-friendly 4.Opaque for privacyMaterialLDPE,HDPE,PE,ETC for Courier bagSize14''X6.5'',16.7''X13.3'',22.6''x15 ...