Universal Size: Our sink plug is fully compatible and suitable for most sink drain holes. With a diameter of 32-42mm, it is suitable for different types of sink drains. If your sink drain hole is larger, you can use the included rubber sealing ring to adjust the diameter. Premium Material: Made of high-quality thick copper, our sink plug is sturdy and durable to prevent breakage. The unique combination of stainless steel and brass effectively prevents rust and corrosion caused by domestic sewage and oil residue. Built-in Filter Design: Our sink plug is equipped with a built-in filter that collects hair and prevents drain clogging. Unlike traditional drains, our product is equipped with a filter basket that prevents dirt and other objects from entering the drain pipe. Quick Installation: Our universal self-opening sink drain is easy to install and requires no tools. Installation and disassembly are quick and easy, without tools. Simply remove the old plug and install the new one. With two gaskets, you can improve stability and sealing to ensure smooth operation. Versatile Application: Our self-opening design makes it easy to switch between different modes, including water conservation and drainage. It is both a sink stopper and a filter and is ideal for bathtubs, bathrooms, and kitchen sinks.