HIGH QUALITY MATERIAL The Pop-Up Drain is made of stainless steel and brass. Anti-rust, anti-crack, integral molding. Good rebound resistance, fast sealing and draining water with one press. Supplied with a thickened silicone gasket. EASY INSTALLATION The sink drain can be installed easily without using any tools due to the simple and convenient structure. All you have to do is remove the original drain plug by hand, insert the new plug, and press the spring switch to complete the sealing and filtering. BUILT-IN FILTERS Anti-Clog Drain Filter. Unlike ordinary push-button drains, this sink drain features an anti-clog basket strainer inside, which helps collect debris and prevents small items such as jewelry, rings, and dirt from entering the drain pipe, reducing the risk of clogs. POP UP VALVE Sink Plugs with a solid brass pressure spring allow quick opening and closing. No more clogging or water leaks. The pop-up design replaces traditional, inconvenient sink stoppers. Simply press the top cap to switch between open and closed modes. APPLICABLE SIZE Pop Up Sink Stopper fits drains with a diameter of 28-36mm. Outer diameter: 62mm, inner diameter: 35mm. Ensure proper fit for your sink drain.