Surplus military spec packaging supplies. Grease proof paper material that is sealed with a heat sealer. Ideal for machinery and automotive parts. Doboy Heat Sealer Materials include the following rolls (100 yds each): MIL-B-121 Paper Sleeves 3 rolls @ 6" width 3 rolls @ 9" width 4 rolls @ 16" width 1 roll @ 36" width Plastic 1 roll @ 4" width 1 roll @ 16" width .... over 1100 yds of packing materials & sealer