Comfortable & Noise Reducing - 15-Piece Stair Treads Carpet is made of polyester, High-density wool blends on the stair cover surface make you feel soft and comfortable on bare feet. Proper thickness can reduce the noise generated when going up and down the stairs, and provide you with a quiet and relaxing environment. They are an excellent choice for anti-slip protection. No crease, no curl, no fading. Washable & Reusable - Step treads are durable and stain-resistant. Dust, paper scraps, and pet hair can be cleaned with a vacuum cleaner.