Polycarbonate chairmat is designed for carpets. The safer, extremely durable (high clarity and impact-resistant), and more environmental alternative to traditional PVC General Office Chairmats. Friendly grippers for maximum hold. Protects carpets with ease of movement, durable, clear design lets carpet show through. Fire-resistant, odorless, ergonomic (easy movement of chair with casters) easy to clean with soap and water, and completely free of toxic chemicals. Ideal for use in any open-plan or free-standing office configurations covers 95 percent of all chair movement patterns.