Environmental protection material: Zinc alloy drain plug, durable material, corrosion resistant, rustproof and long service life. With double sealing washer, high quality silicone material, aging soft and long-lasting, anti-drying and stronger sealing performance. Actual use: Overflow when draining to prevent water overflow. Simply press the large round lid to store water, press again to open and drain. The valve can be closed and opened in a fraction of a second, and there is no more problem with clogging and leaking sink plugs Easy to install: Due to its huge structure and precisely installed joints, the drain valve can be completely installed in just a few steps, without using any tools, according to the instructions of any standard sink Universal pop-up design: Based on a simple pop-up switch design function, the drain plug can be closed or opened immediately. Closing the sink stopper is no longer a problem The pop-up type with overflow hole is perfect for use on most standard bathroom sinks and basins. Easy to clean: You can easily unscrew the top pressure cap of the drain hose and clean it with a soft cloth. It has anti-caking and anti-odor effects.