4 1/2 inch x 6 inch - MIL-SPEC inch packing list enclosed" envelopes. Pressure sensitive packing list envelopes secure and protect documents that are attached to the outside of shipments. Full face, fluorescent Orange packing list envelopes are pre-printed with inch packing list enclosed" 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.