Material: Stainless Steel Item dimensions: L x W x H 5.1 x 7.6 x 2.5 centimetres About this item: [ Easy to Install ] No tools are required, it can be easily installed with bare hands. You simply take out the old bounce core and install a new bounce core. Anyone can install the pop up drain because of its simple structure. If you want to use it for a larger sinkhole diameter, you can use the rubber ring we included to increase the inner diameter of the sink plug. [ Universal Size ] This sink drain is a universal stainless steel spring core product, can be used for the different types of basin drain. The inner diameter of the sink plug strainer is 33.5mm. Suitable for drain holes with an inner diameter of 34mm - 38mm. [ Built-in Strainer ] The sink plug with an anti-blocking basket strainer inside, which can collect hair and prevent the drain from clogging, achieving effective filtering, unlike the ordinary push button drain. Suitable for bathtub, bathroom and kitchen sink and so on. [ High quality material ] The drain plug is mainly made of high quality stainless steel and thickened copper materials, sturdy, rust-proof, anti-cracking. With its good bounce and rebound resistance, fast draining and fast sealing water.