EXACT INSTALLATION DIMENSIONS: The black overflow valve with a 1 ¼\" connection fits all standard sinks and washbasins! Pop-up: Thanks to the incredibly simple pop-up click function, the black sink valve can be opened and closed in a fraction of a second! Improved springs have been installed, which are very stable and do not fatigue prematurely. DURABLE MATERIAL: The sink valve accessories have a matte black finish. Give your sink a whole new look with the black pop-up drain valve with overflow! Fast drainage: Close and open the valve in just one second! With the push of a button, the water is effectively shut off and stored, ready to be used when you need it. Instead, a single press is enough to drain the stored water, and the hinged drain immediately drains excess liquid. Tool-free installation: Quick and easy to install in just a few steps, without tools (for sinks with overflow). Show more