DURABLE CUSHIONING - Pad contains 28oz of felt per square yard. Thickness is approximately 1/3" throughout (actual thickness may very slightly in production). Dense thick felt adds soundproofing and insulation. Non-abrasive to protect rugs and floors from scratches. Adds extra comfort underneath rugs without extra bulking. MADE IN THE USA - 100% recycled felt needle-punched to prevent moisture buildup. Odorless, low VOC's, and hypoallergenic. SAFE FOR FLOORS - Chemical and adhesive free. Will not stain, strip, or damage hard surface flooring. Safe to use with hardwood, laminate, stone, tile, radiant heat, concrete, bamboo, and more. NOTE TO CUSTOMER - This is not a non-slip rug pad and will not prevent rugs from shifting. This pad should only be used with large rugs that are anchored down by furniture. TOTAL SATISFACTION - If you are unsatisfied with your purchase, please contact us (via Message) and we will be happy to assist you.