The Bristan round clicker bath waste with overflow chrome The waste features a strong body from top to bottom, with the inner workings made out of black premium ABS and the clicker top made from strong brass with a fingerprint- and soil-resistant chrome finish. The product is simple to use with an easy push functionality that requires only that you push down on the waste to fill the bath and then push on it again to pop it back up so the water can drain out.