Black floor protection mats made from a unique PVC formulation to provide optimum vinyl performance and durability. Prevents damage and wear to hard floors often caused by chair casters and footwear. Ideal for use with a computer desk or workstation in the home or office Provides an ergonomic easy glide surface for easy movement of caster based rolling chairs to help reduce leg and lower back fatigue Guaranteed not to crack, chip, break or shatter under normal use and correct application. Black plastic formulation creates an eye-catching addition to your home or office. Ideal for covering already worn flooring Advantagemat chairmats are 100% free of harmful DIDP Phthalate content for improved air quality over conventional PVC products. Free of chemical content banned from child related products. Also free of tin, lead, cadmium and BPA 50% of our manufacturing site's energy comes from on-site & external renewable sources. Contains up to 20% recycled material. 100% recyclable