CraftRugs Premium Grip Plus Non-Slip Rug Pad, 2' x 3', Blue Premium, 3/8'' Thick non-slip rug pad designed for hard surfaces 56 ounces; 100% Natural Rubber and 100% Recycled Felt Extends the life of your Area Rug; Adds Cushion Underfoot; Keeps Rugs Securely in Place Low VOC (meets or exceeds Carpet and Rug Institute Green Label low emission standards); Hypo-allergenic; Satisfies credit requirements for USGBC LEED Rating Systems Premium Grip PLUS(TM) Rug Pads are guaranteed not to mar, stain, or discolor floors for 20 years