【Durable Material】: Metal components are made of stainless steel and solid brass, chrome-plated surface protect against corrosion and rust effectively. Drain off valve fitting for all washbasins in standardized installation dimensions of 1 ¼ ". 【Silicone Gaskets】: Two layers of high quality silicone sealing washers which is anti-aging and anti-cracking. It has stronger sealing performance, avoiding water leakage and overflow, safer to use. 【Strong Spring】: Improved extra stable compression spring is made of pure brass with good rebound resistance. The pop up lid of the sanitary sink can be turned off easily in no time, quickly seal and drain water with a single press. 【Easy to Clean】: All components can be easily removed for easy cleaning. Suitable for washbasin, sink and bidet mixer. Basin sink waste is great for home and office use. 【Convenient Use】: The push button bouncing length is 0.78 inch (2 cm), provide a quicker release of the water flow. Simply replace or install the sink drain valve, no tool needed., Manufacturer: Netspower