Our 40 x 22 x 72 4Mils Pallet Covers All our clear Gusseted bags on a roll are made of 100% virgin Low Density Polyethylene (LDPE) resin that meet FDA/USDA specifications. Easy dispensing with perforations between bags. Tubular construction throughout with a durable bottom seal, make these bags the best on the market. This premium bag features superior clarity for showing the quality of your customer's products. Wound on a 3" core with 1" diameter core plug. Can be heat sealed, tied, stapled or taped shut.