36x72 1.5mil, Sheets (opens to 72) Contains no color additives. Made with a proprietary blend of 100% virgin low and linear low density polyethylene. Provided on rolls, boxed. Material: Low and Linear Low-Density Polyethylene Blend. Construction: BOTTOMSEAL Shelf Life: 5-10 years, when properly stored. Storage: Store at temperatures less than 120 degrees F. Avoid storage in direct sunlight. Regulatory Status: Raw Materials are approved for use in direct food contact packaging under paragraph 177.1520 of Title 21CFR of the Code of Federal Regulations, with no restrictions. This product complies with California Proposition 65 and all applicable CONEG heavy metal restrictions.