4 1/2 inch x 6 inch Red inch packing list enclosed" envelopes. Pressure sensitive packing list envelopes secure and protect documents that are attached to the outside of shipments. Full face, colored packing list envelopes are pre-printed with inch packing list enclosed" in script Font on heavy 2 mil poly. Hot melt adhesive backing provides strong adhesion to paper and corrugated products. Envelopes open along the first dimension. 1000 per case.