Item DescriptionStore parts, supplies, lightweight items, clothing and even food in Labelmaster’s 4-Mil Poly Bags. These are also ideal for use as a secondary containment box liner in UN-certified packaging. Economical and reusable, they meet FDA and USDA specifications for food contact, and you can seal them quickly with wire ties, cable ties or impulse sealers to save both time and effort. Clear, low-density bags measure 16 x 18 in. and are sold in cases of 500.