Smooth back prevents sliding. Ideal for many different applications, from chairs to heavy traffic areas. Provides the ultimate in quality, clarity and durability for home and office flooring. Crystal clear polycarbonate allows the beauty of the floor to shine through and is the perfect gliding surface for chairs with casters. Polycarbonate is extremely durable and does not curl, crack, discolor or emit any odors or gases when used under recommended applications. 100% recyclable.