Cleartex Unomat Anti-Slip Chair Mat For Hard Floors/flat Pile Carpets, 35 X 47, ClearSuitable for all hard floors including laminates, parquet, tiles or stone and very low pile carpet /carpet tile applications.Clear polycarbonate allows the beauty of the floor to shine through and is the perfect gliding surface for chairs with casters.Polycarbonate is extremely durable and does not curl, crack, discolor or smell. Twice the impact strength of vinyl to provide the perfect ergonomic easy glide surface. 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)