UNIVERSAL SIZE: Standard 1 3/4" drain, suitable for most bathroom sink installations. It is perfect for any non-counter container sink. . QUICK DRAINAGE: The humanized design only needs to press lightly, and the pop-up drain will quickly sprinkle water. 10% faster than traditional drain plugs. Multi-layer matte black surface treatment can resist daily scratches, discoloration. . EASY TO INSTALL & USE: Anyone can install a pop up drain due to its simple construction, no tools required, the thickened and extended nut allows it to be mounted by bare hand. The spring-loaded button does not require a lifting lever. Just push the drain cover down to close and seal it, then push it again to open and drain. You can turn the upper cover counterclockwise to unscrew and remove. . UPGRADED ABS MATERIAL: The drain stopper is mainly made of quality ABS materials. Good rebound strength quickly seals and drains water with a single press.