The sink is a universal product made of stainless steel with the spring core, which can be used for different types of basin drain pipes. The inner diameter of the sink filter is 33mm. Suitable for drain holes with a diameter between 34 and 38 mm. Easy to install: you don't need any tools, you can easily install it with bare hands. Simply remove the old bounce core and install a new twist core. Anyone can install a pop-up drainpipe because its simple structure. If you want to use it for a larger diameter, you can use the rubber ring we provide to increase the inner diameter of the sink cover. High quality materials: the plugs of drainage are mainly made of stainless steel, with high quality copper and thickened anti-copper cracks, anti-mudmud. With its good bounce and rebound resistance, the water drained quickly and closed quickly. Built-in colander: There is an anti-block basket in the sink cover which can collect hair and prevent pipelines. It can filter effectively, different from people with pimples. Suitable for bathtubs, bathrooms and kitchen sinks. Two mode switches: The pop-up design of this flow strainer is an uncomfortable method of drainage. It is a tub and a filter at 2 inches of -1, which is enough to gently press the upper limit to change the two modes, including water holding and draining. High quality materials It is made of 304 stainless steel and brass rebound, quality and solid material, anti-explosion and anti-trigger works.< /p> The button operation Good rebound and rebound intensity, quickly seal the water under pressure. Anti-cut design Built-in basket gypsum, with porous filtration, objects that do not enter the drain pipes, such as jewelry, ring, etc. Waterproof design Joints silicone are thickened, no glue, antioxidant and resistance. Step 1 Just replace the old ones. Step 2 Insert the bounce core to complete it. Step 3 Appearing as a plug.