[Standard 1 3/4inch Drain Opening] This bathroom sink drain fits sink holes with a diameter of 1.6inch to 1.9inch and is for sinks with a maximum thickness of 2.5inch. Made for with an overflow. [High Quality] Flexible and thickened silicone gasket and advanced compression lock draining is completely sealed. The tough ABS surface resists everyday scratches, corrosion and tarnishing. [Easy to Operate] The spring-loaded pop-up drain stopper presses smoothly to push and seal. Use this sink drain assembly to conveniently fill and drain your faucet container. You can unscrew the top of the drain plug and easily clean the hair waste inside. [Easy Installation] The sink drain assembly is quick and tool-free to install. Make sure the gasket is in the correct position to avoid leaks. You can install this sink drain assembly with your bare hands, no need for plumber's and tape. [Matte Black Finish] Its matte black finish gives this sink drain a sophisticated look to match your faucet, making it an attractive addition to your powder room or a master bathroom. Colour:Black Material:ABS Package Contents: 2 * Bounce drain Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.