Material: Made of high quality plastic which grips better than metal and won't scratch your sink; Coating with good adhesion, fine and uniform color, excellent corrosion resistance and beautiful surface gloss. Easy installation: no installation tools required. Simply insert the ring into the hole and push it into place. Put some soap on it to make it easier to slip through the holes without breaking. Size: 12 drain covers are enough to meet your needs, 4 styles, fit the holes standard overflow from 22 mm to 24 mm. Suitable for most types of sinks on the market. Durable and practical: coating layer with good thin adhesion, uniform color, excellent corrosion resistance, and ensure the surface shine and shine . You can use it in the kitchen or bathroom for a long time. Wide application: suitable for all types of ceramic sinks in the market, widely used in homes, shopping malls, restaurants. hotels, factories and kitchens.