Stays in place: This plastic mat lets you twist, slide, and turn your chair without the worry of slippageProtects flooring: Keep floors from damage with a protective floor mat made of strong, thin, and durable polypropyleneSafe and healthy: Polypropylene is a thermoplastic, flexible polymer used in many common household itemsImprove comfort: People who spend long hours laboring at a desk may sustain pain from an aching back or stiff neck. Rolling and fidgeting are common efforts to get comfortable. A non-skid floor mat can help you move aboutOversized: This easy-glide PVC mat complements your favorite computer chair easily, regardless of seat size, and it measures 47.5 long x 35.5 inches wide x .1 tall (121.9 x 91.1 centimeters)