Polycarbonate chairmat with a lip provides durable floor protection with twice the impact strength of PVC. Lightly textured top surface delivers the ultimate in easy-glide ergonomic benefits. Totally clear design lets the beauty of your floor show through. Rectangular chairmat is designed for use on low-pile to medium-pile carpets up to 1/2" thick. Friendly grippers offer maximum hold. Extremely durable polycarbonate won't curl, crack, dimple or discolor in normal use and is fire-resistant, impact-resistant, odorless and environmentally safe. Material is also completely free of phthalates and other toxic chemicals. Cleartex Ultimat Chairmat is ideal for many different applications from supporting chair movement to protecting carpet in heavy traffic areas, such as vending machines and reception. The 0.09" thick mat is ready for instant use so no need to leave sitting to go flat. Lip size is 10" x 20".