HIGH QUALITY MATERIALS: Our pop up sink stoppers are mainly made of high quality stainless steel and brass, with high quality finish, anti-corrosion, anti-rust, anti-cracking and molded in one piece. Good resilience, one press can quickly seal the drainage and storage BUILT-IN FILTER: Different from ordinary button drain pipes, there is an anti-clogging basket inside the copper plug to ball core, which can collect hair and prevent the drain pipe from clogging. For example, jewelry, rings, dirt, etc. won't get sucked into the drain pipe EASY TO INSTALL: No tools required, just remove the old sink plug and install a new universal drain filter plug made of stainless steel, suitable for washbasins, sinks, kitchens and bathrooms DUAL-MODE SWITCHING: The pop-up design of the pop-up sink stopper without overflow subverts the inconvenient drainage method. Press the top cover to switch between 2 modes, water storage and drainage, and can be removed for cleaning at any time SATISFACTION GUARANTEE: Risk-free purchase. If there is any quality issue, we will arrange replacement (new stainless steel drain filter) for you or refund. We will offer you the best solution when you write to us