[Built-in filter] Different from ordinary button drain pipes, there is an anti-clogging basket filter inside the drain pipe of this sink, which can collect hair neatly and prevent the drain pipe from clogging and things that will not enter the drain pipe. , Such as jewelry, rings, dirt, etc. [Dual mode switching] The pop-up design subverts the traditional and inconvenient sink plugs (such as basic plugs with chains) Just gently press the top cover to switch between 2 modes-stopper (hold water) and filter (drain water). [1.33-1.5 inch diameter bouncing drain filter] This product can be used for different types of pop-up filter basket drains. Suitable for drainage holes with an inner diameter of 34 mm-38 mm (1.33-1.5 inches). [High-quality material] The drain plug is mainly made of high-quality stainless steel and brass, which is anti-rust, anti-crack and integrally formed. Good resilience and resilience, one key to quickly seal water. [Easy to install drain filter] Just take out the old filter and insert the bounce core to complete the installation. Anyone can complete this operation. The thickened and extended nut allows it to be installed manually without the use of tools. Product description Material: Copper + Stainless Steel + Silicone Inner diameter: 34-36mm (1.33-1.38inch) Outer diameter: 60mm (2.35 inches) Closing height: 40mm (1.57inch) Bounce height: 50 mm (1.97 inches) Easy to use and install: 1. Remove the old pop-up sink plug 2. Put into the washbasin pop-up drain filter 3. Pop up through the news and act as a bathtub/washbasin stopper 4. Collect hair, jewelry, dirt