Our 72 x 72 1Mils Pallet Covers The 1 mil Low Density Polyethylene sheets easily tear off perforated rolls. See through for quick identification. Made of 100% virgin LDPE resin that meets FDA/USDA specifications. Use as pallet top covers, drop cloths, or dust covers. Wound on a 3" core with 1" diameter core plug. Folds may occur on either side of the roll.