Reliable Design: Based on a simple pop-up switch design function, the sink drain can be closed or opened instantly. No more hassle with click clack drains! Premium quality materials: made of stainless steel and brass, the chrome finish effectively prevents corrosion and rust, including silicone seals to prevent water leaks water. Easy Installation: Due to the simple and practical structure, follow the instructions to completely install the sink drain in just a few steps without additional tools Versatile: adapts to most sinks between 41-53mm in diameter, standard installation size 1 ", suitable for kitchens and bathrooms. Please pay attention to the installation size of your sink before purchasing. Easy to Clean: You can easily unscrew the upper pressure cap of the sink stopper and clean it with a cloth. After use, please dry the surface as much as possible to avoid scale formation.