Premium Material: Our pop up plugs for wash basins are made of copper core material with smooth surfaces and edges, which is reusable, rust-proof, sturdy, not easy to aging and has better sealing and durability. Easy to use: plug and play. Simply take out the old sink plug and insert a new sink strainer. You need to press the sink stopper to quickly drain the water by using a spring mechanism and a screw-threaded push pop-up. No Leakage Design: The bouncing brass cores have good bounce and rebound strength. The sealing ring seal is a high-quality ring. Simply press the flush plug to prevent waste from entering the tube. Convenient Design: The bathroom sink plug pop up can prevent garbage such as hair and leftovers from entering the pipe to prevent water pipes from clogging. Wide Applications: This click clack bathroom sink stopper is ideal for standard size sink or kitchen sink, suitable for 36 mm-39 mm/1.4i nch-1.5 inch hole diameter. Please make sure the hole size before purchasing.