House, Home and More Set of 15 Skid-resistant Carpet Stair Treads - Pebble Gray - 8 In. X 27 In. - Several Other Sizes to Choose From Olefin Made in USA These carpet stair treads feature a thick, premium, skid-resistant rubber backing to create a safer, more secure walking surface for your family and pets Can be placed directly onto most hard stairs to protect the surface and create traction (they do not attach) For additional security you may also use double-sided tape or carpet tacks (not included) Made of high-quality olefin carpet to resist stains Bound on all edges to prevent fraying