Cleartex Ultimat Polycarbonate Chair Mat For High Pile Carpets, 60 X 48, ClearTwice the impact strength of PVC for a rigid easy glide surface for maximum ergonomic performance.High clarity to allow the beauty of your flooring to shine through.Free of phthalates, tin, lead and cadmium content. WARNING: This product can expose you to Bisphenol A (BPA), which is known to the State of California to cause Birth Defect/Reproductive Harm. For more information go to www.P65Warnings.ca.gov. - Birth Defect/Reproductive Harm:Bisphenol A (BPA)