Size Detail: The outer diameter of the round ink hole overflow cover measures approx. 30 mm/ 1.18 inch, and the inner diameter measures approx. 20 mm/ 0.79 inch, about 16 mm/ 0.63 inch in height, fit standard 22-24 mm overflow holes well. 6 drain cap covers are enough to use, also have parts spare for a good replacement. Material: These round bathroom sink hole overflow covers are made of ABS plastic material, the cover is printed with chrome, looks modern and shiny, suitable for decorating the overflow hole , does not block it, can be used for a long time in the kitchen or bathroom. Better than the metal handle, the quality and will not scratch your basin. Easy to install: Our sink overflow rings are easy and convenient to match with faucets, you just need to push and click to place them, putting a little soap on them can help slide easily without break the cap cover feet, easy for you to install. Keep the surface bright and shiny: Our basin trim overflow drain plug covers are designed with good adhesion, classic color and nice corrosion resistance, which will ensure a brighter surface and brighter. Wide application: Our sink drain plugs are suitable for most types of sinks on the market, can be applied to home, hotel, shopping mall, factory and others locations, please check that your overflow hole diameter is compatible with our products before purchasing.