QUALITY: Solid metal waste set for sinks and vanities with a high-quality brass compression spring for a long service life. Our pop-up valves are compatible with all common sinks. RELIABLE DESIGN: Based on a simple pop-up switch design function, the sink drain can be closed or opened instantly. No more hassle with clic-clac caps! EASY CLEANING: The upper pressure cap has a size of approximately 66 mm . It can be unscrewed quickly and easily and cleaned of dirt deposits. Done in a flash. EASY INSTALLATION: Due to the simple and practical structure, follow the instructions to completely install the waste set in just a few steps without any additional tools. PRACTICAL FUNCTION: Do you have a piece of furniture with an overflow? Then this drain valve with overflow function is exactly the right choice and prevents unwanted flooding.