These are designed and manufacture top-of-the-line, anti-slip stair treads. We are concerned about public safety. We are also dedicated to the quality and character of your building design. Our stair treads meet and exceed safety surface specifications, including ADA, OSHA, and are in compliance with the barrier-free code for the physically impaired. Safety treads and [stair nosing] are ideal for any indoor or outdoor application where stair tread protection and added safety are desired or required. Stair tread inserts are slip-resistant, durable.