1.Highquality materialThe universal sink plug is mainly made of highquality stainless steel and thickened copper materials with a shiny chrome surface. The brass core structure of the pop up sink plug ensures durability and longevity, rustproof, reliable and durable. It is made of one piece, drains quickly and is equipped with a thick silicone seal to prevent leakage. 2.Builtin filterUnlike conventional drain plugs, our drain plug for sink inside is equipped with a clogresistant basket filter that can collect hair cleanly and prevent drain pipes from clogging. Necklaces and rings do not have to worry about them flowing into the wastewater disposal of the sink. Suitable for bathtubs, bathrooms, kitchen sinks, etc. 3.Perfect CompatibilityThe spring loaded sink plug fits any standard sink drain pipe with an inner diameter of 3440mm. There are 2 rubber rings built in, which can be adjusted according to the size of the drain hole. Suitable for all standard sinks in the kitchen and bathroom. Be sure to measure the size of the drain hole of your sink before buying a drain plug. 4.Quick InstallationThe sink drain plug has a simple structure, no tools are required. Simply take out the old plug, insert our drain plug and press the spring switch to lock it easily. If you want to use it with a larger sink hole diameter, you can increase the inner diameter of the sink plug with the builtin rubber ring.