This 100% pure polycarbonate hard floor chair mat works for light, medium, heavy use. Its rectangular shape fits under office desks, it provides ultimate hardwood floor protection, suitable for vinyl, hardwood, laminate, stone, tile, concrete floors. It has high impact strength for smooth gliding, a slick surface that makes rolling chairs easier to move, reducing leg strain by taking pressure off your legs, its rigid surface will not dip or cup over time. This premium, smooth, durable computer chair mat safely adheres to hard surfaces to prevent damage from office chair casters or wheels. It has no harsh odors or toxins, is easy to clean with warm soapy water without needing harsh cleaners. Larger floor protectors are shipped rolled, will flatten out almost immediately once unpacked. Available colors: 30"" x 48"" Flat, 36"" x 48"" Flat, 36"" x 48"" Rolled, 48"" x 60"" Rolled.