3M™ Top Print Packing List Envelope PLE-T1 PL is a 4.5in x 5.5in polyethylene envelope, top-printed: PACKING LIST ENCLOSED. This 3M™ product is designed with a high-tack rubber resin adhesive that sticks on contact to packages. Oil- and water-resistant, this packing list envelope helps safely and securely protect documents from damage throughout delivery.Keep packing slips, invoices, cards and other shipping documents safe and secure with the 3M Top Print Packing List Envelope PLE-T1 PL. This 4.5 in x 5.5 in polyethylene envelope is top-printed with the message "PACKING LIST ENCLOSED" and comes with a high-tack rubber resin adhesive that sticks immediately upon contact. This peel-and-stick envelope is oil- and water-resistant and built to withstand the toughest handling conditions.