Item DescriptionLabelmaster's 4-Mil Poly Bags are an ideal way for you to store smaller items being shipped in UN-certified packaging. These industrial poly bags are perfect for all types of products and meet FDA and USDA specifications for food contact. These 4GV accessories are available gusseted or flat. Gusseted bags have expandable sides and a fitted bottom, which provide extra room for irregular-shaped items. Flat poly bags are most often used to contain small plastic or metal parts. Both bag types can be sealed with wire ties, cable ties or impulse sealers, all of which are sold separately. These 4-mil bags are made with low-density, clear polyethylene, measure 40 x 48 in. and are sold in cases of 50.