【Universal Size】The sink drain plug is suitable for drain holes with an inner diameter of 30mm to 40mm, which can be used for different types of drain pipes. The matching silicone ring can adjust the size of the sink plug to better fit the drain hole. Suitable for most sizes of sinks, kitchen sinks, household sinks, bathtubs and more. (Please confirm the size of the drain hole before purchasing) 【Retractable Drain Valve】The upgraded retractable drain plug can switch between storage and deflation modes by simply pressing the top cover, and it will not tilt when you press the button. Sealed and leak-proof, upgraded multi-layer sealing ring design, no water leakage, safe to use, solves the leakage problem caused by the failure of the traditional sink water filter button. 【Built-in Filter】Unlike traditional drain plugs, the new sink drain plug has a built-in anti-clogging basket that captures accidentally dropped hair, dirt, and jewelry to prevent drain clogging. At the same time, all