Built-in strainer: The sink stopper with an anti-blocking strainer inside, which can collect hair and prevent the drain from clogging, which provides effective filtering unlike a normal push-button drain. Suitable for bathtub, bathroom and kitchen sink, and much more Easy to install: No tools are required, it can be easily installed with bare hands. You just need to remove the old bounce core and install a new one. Anyone can install the pop-up drain due to its simple structure. If you want to use it for a larger sink hole diameter, you can use the rubber ring we provide to increase the inner diameter of the sink stopper Two-mode switch: The pop-up design of this sink filter reverses the uncomfortable drainage type. This is a bathtub stopper and a filter, 2 in 1. Just gently push the top cap down to change 2 modes, hold water and drain it. Double Sealing: The sink drain fitting with hair filter is made of chrome-plated brass, rust-proof, sturdy and durable. Universal: The basin