Our 4 Mil Clear Poly Tubing is made of 100% virgin Low Density Polyethylene (LDPE) resin that meets FDA/USDA specifications. Poly tubing is manufactured to exact specification to ensure even wall thickness and unrivaled clarity. Tubing comes neatly wound on a 3″ core with a 1″ diameter core plug and can be heat sealed, tied, stapled or taped shut. Sizes 5″ and above are Made in the USA. See our Tubing Dispensers for mounting and creating your own custom-sized bags & Tapes & Ties for a complete list of our bag closures.