Mohawk Home Dual Surface Felt and Latex Non Slip Rug Pad, 3'x12', 1/4 Inch Thick, Safe for Hardwood Floors and All Surfaces Dense pad designed to be used with all area rug types Felt constructed from the carpet fiber cutoffs remaining from the manufacturing process of open loop carpets. About 1/4" thickness providing plusher feel when walking on rug. Brown rubber backing keeps rugs in place. Fiber side has rough feel to grip rug backing. Rubber side has an embossed pattern to grip hard surfaces.