Polycarbonate All Day Use Chair Mat - Hard Floors, 45 X 53, Rectangle, ClearExtremely durable and resilient chairmat for all flooring types and Big & Tall applications. Highly rigid, hard surface provides less friction and dishing compared to traditional chairmats. Heavy weight chairmat for anytime use on all pile carpets and hard floors (Not suitable for use on concrete floors). Protects flooring from caster wear, spills and heavy traffic. Nonstudded. Mat Type: Chair Mat; Application: Hard Floors; Width: 45"; Length: 53".