Our heavy duty pop up drain is made of premium chrome plated brass with 100% corrosion resistant chrome surface. Washbasin drain with solid brass pressure spring which have good resistance to shock and rebound, durable for more than 100,000 test cycles Specially designed for washbasins: the odor trap reliably drains water into the waste pipe and prevents unpleasant odours. 100 % waterproof with premium silicone seals (anti-corrosion, abrasion resistant). No water leakage. Pop-up waste with standard G 1 1/4 connection, suitable for all washbasins and bidets with overflow