Feature●Panel face, colored packing list envelopes are pre-printed with "packing list enclosed" on heavy 2 m●Hot melt adhesive backing provides strong adhesion to paper and corrugated products●Envelopes open along the first dimension●4 1/2" X 5 1/2"●Clear window with red panel designDescription Pressure sensitive packing list envelopes, secures and protects documents that are attached to the outside of shipments.