Easy to install: Our sink overflow ring matches the faucet, which is both simple and convenient. You just need to push and click to place it. Placing a little soap on top can help easily slide in without damaging the foot of the cap, making it easy to installSize details: The outer diameter of the ink hole circular overflow cover is approximately 30 mm/1.18 inches, the inner diameter is approximately 20 mm/0.79 inches, and the height is approximately 16 mm/0.63 inches, which is very consistent with the standard 22 to 23 mm overflow holesMaintain surface gloss and brightness: Our basin edge overflow drain cover design has good adhesion, classic colors, and good corrosion resistance, which will ensure a more glossy and bright surfacePlastic Material: These circular overflow covers for bathroom sink holes are made of ABS plastic material, with chrome printed on the covers, giving them a modern and shiny appearance. They are suitable for decorating overflow holes and will not clog, making them suitable for long-term use in kitchens or bathrooms