Universal Size: The sink drain plug is suitable for drain holes with an inner diameter of 34 mm to 40 mm/1.34 to 1.57 inches and can be used for various types of drains. 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 drain hole size before purchasing).Pop-Up Drain Valve: Improved Pop-Up Drain Plug: Simply press the top cover to switch between storage and drain mode; it will not tip over when you press the button. Sealed and leak-proof: Improved multi-layer sealing ring design, no leakage, safe to use, solves the problem of water leakage caused by the failure of the button of the traditional sink water filter. .Built-in strainer: Unlike conventional drain plugs, the new sink drain plug features a built-in anti-clogging basket strainer that catches hair, dirt, and accidentally dropped jewelry to prevent drain clogging. At the same time, all parts of the new sink drain plug can be disassembled for cleaning.