24 x 30" - 4 Mil Reclosable Poly Bags. These single track zipper seal poly bags are best used for light to medium weight products while keeping products clean, protected from dirt, dust and free from moisture. Bags are manufactured from 100% virgin, high clarity low density polyethylene (LDPE) film. Reclosable clear plastic zip seal bags are easy to seal and can be reused. Bags meet FDA and USDA requirements for contact with food products. Sizes listed are the inside usable dimensions of the bag. Select from many different reclosable poly bag sizes and mils to fit your packaging, shipping, displaying, organizing and storage needs.