7" x 725' - 6 Mil Poly Tubing. This extra heavy-duty clear plastic poly tubing is perfect for heavy weight products. Poly Tubing adds flexibility to your line without the need to stock an expensive variety of bags, saving on inventory expenses. Simply cut the poly tubing at the exact desired length to create a custom fit plastic poly bag. Use a heat sealer to seal both ends of bag. Select from many different widths, lengths and mils to fit your packaging, shipping, displaying and storage needs.