Wide Range of ApplicationsSuitable for drain holes with an inner diameter of 34mm-38mm (1.34-1.49in) to avoid common problems such as inconsistent size and poor fit Note: Please measure the size of the drain hole before buying to prevent the product from falling into the drain hole. Made of stainless steel and brass, anti-rust and anti-corrosionThe overflow-free drain pipe is made of stainless steel and brass, cast in one piece, effectively preventing rust and corrosion caused by sewage household items and oil stains. Comes with a thickened silicone gasket. Quick Installation in 3 SecondsYou only need to remove the original sink drain valve by hand, insert our sink stopper and press the spring switch to complete the sealing easily and filtering. Installation and tool-free removal can be done in 3 seconds, making life easier and more convenient. Sink extraction plugs prevent sewers from sticking and prevent characteristic odors. It doesn't tip over when you press the button, so you don't have to worry about sealing and emptying. Two silicone gaskets black provide stability for increased resistance to leaks.