Built-in StrainerUnlike normal popper drains, this drain features a non-clog strainer that neatly collects hair and prevents the drain from clogging, things that don't go down the drain like jewelry, ring, debris and so on. Two Mode SwitchPop-up design overpowers the traditional inconvenient sink plug e.g. basic plug with chain Simply push down the top cap gently to switch 2 modes - stopper to hold the water and strainer to drain the water. 3.8-3.8cm diameter bounce Drain Filter This product can be used for the different types of pop up filter basket. Suitable for drain holes with an inner diameter of 34mm - 38mm. High Quality MaterialThe drain plug is mainly made of high quality stainless steel and brass materials, rust-proof, tear-resistant, integral molding. Good bounce and rebound resistance, fast sealing and water draining with a single press. Easy to install drain filter, just take out the old one and insert the bounce core to complete the installation. Anyone can complete this process. The thickened and lengthened nut allows for manual installation without the use of tools. Material: Copper + Stainless Steel + Silicone. Inner diameter: 34-36mm. Outer diameter: 60mm. Closed height: 40 mm. Jump height: 50 mm.