Black floor protection mats made from a unique PVC formulation to provide optimum vinyl performance and durability. Prevents damage and wear to carpeted 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 Designed by Floortex, the Floortex Advantagemat? Black Vinyl Rectangular Chair Mat for Carpets - 29.5" x 47" is built for lasting quality and everyday use. Shop at OJCommerce and explore our collection with free shipping on every order.