Universal SizeThe drain plug can be used in bathroom for sinks and bathtubs, and universal bathtub plug also for kitchen. It is suitable for drain holes with an inner diameter of 34 mm to 40 mm (1.33 in to 1.57 in). Please pay attention to the installation size of your sinks before purchasing. Built-in FilterSink drain valve There is a valve at the bottom that can automatically close against insects and odors. This bathtub stopper is equipped with an anti-clogging basket filter, which is suitable for cleaning dirt and can prevent jewelry, rings, dirt and other objects from entering the drain pipe, to avoid clogging the drain pipe. Two-Mode Switch The pop-up design of this sink drain filter reverses the inconvenient drainage mode. The drain stopper has a two-in-one pop-up design. Simply press the top cover to switch between the two modes of storing and draining water, it comes with non-slip rubber pads and two large and small rubber rings to prevent water leakage. Premium Material Sink stopper made of high-quality solid brass and PC material. The surface is covered with multiple layers of chrome plating, which can effectively prevent scratches, corrosion and rust, good rebound and rebound resistance, sealing and quick draining can be achieved with one click. Easy to InstallNo tools required, easy to install with bare hands. You just need to remove the old rebound core and insert our push-type rebound core. Our included non-slip silicone pads fit perfectly into your sink drain holes to help store water and prevent leaks. 99% Universal: Odor-resistant plug-in bathtub with strainer basket, plug and play