Description Tough, seamless plastic for tough jobs in construction and agriculture. Full weight with thickness marked on each rigid-core roll to meet Building Code Specifications, complies with ASTM D-4397-84. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov