The Waterproof Bathroom Sink Plug Stopper Wash Basin Core Bounce Up Drain Filter is the perfect solution for preventing leaks in your sink. Made from thick copper, this plug is durable and resistant to rust and corrosion. With a suitable aperture of 34-40mm, it can fit most sinks. This sink plug features a high standard shell with an electroplating process and a panel pattern design, ensuring fine workmanship. The press sensitive bounce mechanism allows for easy opening and closing, while the built-in silicone gasket provides a tight seal and prevents leaks. The integrated seamless design ensures stability and eliminates the need to worry about sealing and drainage problems. Installing the pop-up drain filter is a breeze, as it requires no tools and can be done by anyone. Simply remove the old sink drain plug and insert the bounce core. The package includes the bounce core, protective cover, and reducer ring, providing everything you need for a hassle-free installation. Key Features: Made from thick copper for durability Suitable aperture of 34-40mm for most sinks High standard shell with electroplating process Press sensitive bounce mechanism for easy opening and closing Built-in silicone gasket for a tight seal and leak prevention Integrated seamless design for stability Easy installation with no tools required Package includes bounce core, protective cover, and reducer ring