Easy to install and use: No tools needed. Remove the flip cover from the old sink plug, then insert this universal sink plug to complete installation. When in use, press to seal or drain. A rubber washer is included to increase the inner diameter for larger hole sizes. Twomode popup design: 2in1 bath plug and filter. Press the cap gently to switch between holdwater and drain modes, providing a simple, singlehanded operation. Universal size for broad compatibility: Inner diameter is 32 mm. Fits drain holes with an inner diameter of 32–42 mm (1.25–1.65 in). Suitable for washbasins, kitchen sink drains, and bathroom sink drains. Note: please measure the drain hole size/diameter before . Anticlogging basket design: Builtin anticlogging basket filter drains water quickly while capturing hair, jewelry, and other debris to prevent clogs. It can be easily disassembled for cleaning, helping you remove foreign objects promptly. Practical and reliable function: Combines effortless drainage control with debris filtration in a single unit, reducing maintenance and improving drain performance. Use scenarios: In a bathroom or washbasin, fill the sink with water for shaving, washing, or soaking items, then drain easily with a press. In a kitchen sink, hold water for soaking dishes or rinsing produce, while the basket captures debris to prevent clogs. In a utility or bathroom sink, use the holdwater mode to fill briefly for cleaning tasks, and switch to drain mode to release water quickly.