1. Double Filtration: The removable stainless steel filter on the top of the sink drain can easily capture hair and other impurities, which is easy to clean and prevent valuables from falling into the drain.2. [Valve Design]: The valve at the bottom of the sink drain uses a magnetic principle and will automatically close when there is no water flow. The spring filter at the bottom can capture small particles to prevent drainage blockage.3.Universal Drain Plug: Suitable for bathroom and kitchen. The bathroom sink drain plug can be used with various types of sink and bathtub drains, suitable for drain holes with an inner diameter of 34mm to 37mm.4.Material: The sink drain stopper is made of stainless steel and brass, which is durable, rust-proof and crack-proof. The surface is plated with multiple layers to prevent rust. High-quality silicone ring effectively prevents water leakage. Built-in spring device, good elasticity, pressure-sensitive, no jamming.5.Easy to Install: The sink drain has a simple structure and does not require any tools. Just remove the old cover and insert the new cover. Simply press the spring core of the plug to switch between water retention and drainage.