Reliable Design: Based on the simple pop-up switch design function, the drain valve can open or close in an instant. No more worries with tight sink plugs.Material: The sink drain is made of zinc alloy, the chrome-plated surface effectively protects against corrosion and rust, including silicone gaskets, preventing water leakage.Avoid Sink Overflow: This automatic drain is applicable to the sink with the overflow hole; Once the water is too full, it can automatically flow into the sewer.Easy Installation and Easy to Clean: The drain system can be installed in a few steps with installation instructions, even for novices, due to the simple and practical structure. You can easily unscrew the top pressure plug from the drain and clean it with a cloth. Widely Use: Drain plug fits all commercial sinks, with a standard installation dimension of 1", good for bathroom sinks with overflow. Please pay attention to the installation size of your sinks before purchase.