Step-Safe ADA Compliant Detectable Warning Tiles meet the ADA and ABA Accessibility Guidelines. The polymer concrete material makes Step-Safe durable and able to maintain its slip resistance even after years of wear and tear. Tiles are resistant to abrasion, weather, strong cleaning solutions, and other environmental conditions. They will also maintain their high definition colors and domes for years. The backside of the tiles features exposed coarse aggregate that is tightly bonded to the tile to enable it to obtain a strong bond to the surface and prevent it from buckling or curling. Step-Safe tiles are available in six high definition colors and two sizes: 1 ft. by 1 ft. or 2 ft. by 2 ft. tiles.