Welcome to our shop This universal 40mm sink drain is designed to fit almost all sinks and bidets perfectly, covering the entire drain hole. It is the most popular model in Germany for a reason. Installation is incredibly easy - simply place the sink stopper in the drain hole and you're done. It couldn't be any easier. The height of the universal sink stopper can be easily adjusted by hand between 6.5cm and 8.5cm. Not only is this sink stopper functional, but it is also attractive with a high-quality chrome finish that matches your existing bathroom fixtures. It is built to last for many years, and we have even added an anti-limescale coating to prevent calcification and ensure durability. With a sturdy rubber ring and four side wings, this sink stopper will stay perfectly in place without moving. Note: 1. Please allow small size error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. (Customer satisfaction is our top priority. If you find any product problems after receiving the goods, such as damage or incorrect quantity, please contact us immediately. We will try our best to provide you with satisfactory after sales service) Thank you for meeting me.I hope this helps you. Wish you a happy life.