High Quality Material: Sink Overflow Ring is made of high quality copper, with uniform color, excellent corrosion resistance, bright surface, clean and tidy. Keep the Surface Bright: The copper overflow hole adopts good adhesion design, the surface is polished and electroplated in several layers, and has good corrosion resistance, ensuring a brighter and lighter surface. Easy to Install: Simply insert the circular sink hole cover into the opening and click it into place.No tools are needed.The tail is designed with a plastic elastic ring that will not scratch the sink, which is very practical. Opening: Our sink drain cover is suitable for opening from 23mm to 25mm, which is the same as the opening of most types of sink overflow holes on the market. Wide Range of Uses: The circular sink overflow ring is widely used in homes, hotels, shopping malls, factories and other places.