All Metal Construction The pop-up sink waste is made of brass and stainless steel. Industry-leading finish ensures our sink waste can resist acid and corrosion from daily use. Easy to Operate and Clean Operation is extremely easy: a simple push on pop-up plug to open and close. Cleaning: Unscrew the pop-up head counter-clockwise, then take it out to clean. Avoid Leakage - Washer Position This basin waste comes with hardware and silicone washers. Make sure position and shape of washers are correct. Incorrect washer position will cause leakage. Specification: Product color: Silver Material: Copper body. Has good corrosion resistance. Installation size: G1 ¼ Material seals: Silicone Item Size: 66 x 66 x 98 mm Package Includes: 1 x Basin waste