This reversible, nonslip pad protects both carpet and hard floors. One side is fabric, made from post-industrial recycled material, for use on carpet; the other is a blend of natural and synthetic rubber for hard floors. Cushioned material reduces rug wear and makes vacuuming rugs easier. Place fiber side up on all hard surfaces, such as wood, tile, marble, concrete and laminate, and rubber side up on carpeted surfaces.1/8" thickness. One side is needle punch polyester felt made from post-industrial recycled material; reverse side is a proprietary blend of natural and synthetic rubber. Prevents slippage. Will not stain, discolor or transfer to flooring or rugs. May be cut with scissors for custom fitting. CRI Green Label certified (CC-851008). 15 Year Warranty. Made in USA of Domestic and Imported Materials.