RugStylesOnline EUST8X30-9-CAPPUCCINO Euro Collection Stair Treads Collection Indoor Skid Slip Resistant Carpet Stair Tread, Cappuccino Brown 70% Polypropylene Pile , 30% Latex Backing Imported Machine washable, do not use detergent (cold/cold, delicate cycle, no dryer, no spin dry, hang-lay flat to dry) Approx. stair tread size: 8  inch x 30 inch (3% due to manufacturing) Protect your stairs and create traction, stain resistant, mildew resistant, fade resistant Indoor use only, in order to secure treads in place, double-sided carpet tape required (not included) Slip resistant backing works on most hardwood, marble etc.