Best Dual Surface is the ultimate rug pad, offering cushioned comfort and protection for both your rug and floor. It's made of recycled post-industrial polypropylene with latex backing. It can be used on both hard surfaces and carpet and has a reversible construction. It reduces puckering under heavy furniture, can be used over radiant heat floor, and is intended for indoor use only. Plus, it's hand washable and backed by a 20 year warranty.