Universal sizeThis sink drain is suitable for different types of pop-up filter basket drains. Suitable for drain holes with an inner diameter of 32mm to 42mm (1.26-1.65 inch). Note: Please measure the size of the drain hole before purchasing to avoid the product not fitting into the drain hole. Stainless steel materialThe sink stopper is mainly made of high quality 304 stainless steel and thick copper material, which is strong, rust-proof, tear-resistant, one-piece molded, quick-draining and leak-proof. Built-in filterThis drain sink features a non-clogging filter that easily collects hair accessories, rings, dirt and more. Effectively prevent drain clogging, this is a removable and washable sink stopper, just clean the dirt stuck in the filter and avoid asking a plumber for help. POP-UP FUNCTION Our bathroom sink stopper is made of solid brass rebound core, which has good anti-kickback and rebound ability. The flush cap can be closed and opened in a second! No more clogging and leaking! EASY TO CLEAN AND INSTALLThe sink drain plug can quickly and easily remove the old bouncing core and install the new one without tools, the drain plug the all-metal sink (the knob parts are plastic) can be completely disassembled into 3 separate parts for cleaning!