Heavy-duty adhesive felt pads. Simple to install. Felt allows for discreet scratch-free motion over wood, tile, and laminate floors, but can also be added to countless surfaces as a buffer and barrier at home, the office or your vehicle. Heavy Duty felt pads are composed of extra-dense recycled PE blend with an extra hardening process to ensure rigid, long-lasting performance Easy to install - Simply clean, peel, and stick Surface preparation is key - Surfaces should be free of dirt & debris and sanded if wooden for maximum performance