Design: The surface is smooth and delicate, the coating adhesion is good, the color is uniform, and the corrosion resistance is excellent. It provides gloss and luster to the surface. Size: The outer diameter is approximately 30 mm (1.18 inches), the inner diameter is approximately 14 mm (0.55 inches), and the height is approximately 14 mm (0.55 inches), which is suitable for standard overflow holes of 23-25 mm. Easy to install: Simply push in and click into place, no tools required. Apply a little soap to the faucet to make it slide easily. The hollow ring won't clog the sink, provides a good grip, and won't scratch your sink. Applications: Our sink drain plugs are suitable for most types of sinks on the market and can be used in homes, hotels, shopping malls, factories, and other places. Please check whether the diameter of your overflow hole is compatible with our products before purchasing. Product Material: These round bathroom sink overflow covers are made of ABS plastic and