Exquisite material: The sink stopper is made of high-quality copper, and the surface adopts multi-layer electroplating process, corrosion resistant and durable. The sealing part is made of high-quality silicone rubber, which is not easy to age and has a long service life. Easy installation: The sink stopper is exquisite in workmanship, ensuring that the threads of all connecting parts are precise. No other tools are required. Simply place the universal sink drain plug in the sink to use and the installation is faster and more convenient. Stable and firm design: the long side rails of the plug attachment sink plugs can perfectly fix it in place without wobbling, and the spiral design allows easy height adjustment, ensuring a comfortable using experience. Highly effective filtering: the sink stopper can effectively filter hair or other dirt, so that the dirt can go directly into the drain. At the same time, it can prevent your small items (rings, earrings, etc.) from falling into the drain. Strong compatibility: 40mm sink stopper is suitable for all sinks standards, such as bathroom sinks, kitchen sinks, bidets, etc., perfectly covering the entire drainage area. It is recommended to measure and confirm the size before ordering.