Solid Brass Material: The pop-up waste basin stopper is made of high-quality brass with a chrome-plated and smooth surface, making it sturdy and durable. The push-to-close flush stopper is resistant to corrosion, rust, and high temperatures, and can be used for a long time. Pop-up Design: The bathroom pop-up waste basin stopper has a good bounce. It is easily closed and opened by pressing the retractable cover. Once closed, the sink can be filled with water, and the cover can be quickly removed and emptied by pressing it again. Design: We use a refined silver mirror finish, giving you a comfortable feel. The bathroom sink stopper is easy to install. Just insert the plug knob into the sink hole to connect and use it easily. Good Sealing: The sink drain plug has a white waterproof silicone ring, which provides good sealing. The basin plug can prevent water leakage and pipe blockage caused by food residue. Suitable for sinks with drain holes of 36-39mm. Please check the size before