This chrome copper pop-up waste plug features an automatic push-open mechanism with overflow protection, designed for sink basins. Crafted from solid copper with a chrome-plated finish, it offers excellent corrosion resistance (passed 24-hour salt spray test, ASS24H level 10) and a long-lasting shine. The seamless, lead-free construction ensures durability and hygiene. Easy to use: simply click the plug to open or close. Easy to clean: unscrew counterclockwise to remove. Comes complete with brass fixing hardware, silicone gaskets, and Teflon tape for straightforward installation (standard DIN G 1 1/4 thread). Total height: 98 mm, plug diameter: 66 mm, main body height: 77 mm, thread diameter: 40 mm. Please confirm compatibility with your sink before purchase. The overflow hole design prevents overfilling, compatible with sinks featuring an overflow hole. For sinks without an overflow, consider model B07DKFXTQB. Ideal for ceramic, glass, or pedestal basins at home, hotels, or commercial spaces. Includes 1 click-clack flap, 1 copper nut, 1 Teflon, and gaskets. 10-year warranty for peace of mind.