Easy to install: our sink overflow rings are easy and convenient to match with taps, you simply need to push in and click in to place, put a little soap on them can help slide in easily without breaking the feet of the cap cover, easy for you to installSize detail: the outer diameter of the ink hole round overflow cover measures approx.30 mm/ 1.18 inches, and the inner diameter measures approx. 20 mm/ 0.79 inches, about 16 mm/ 0.63 inch in height, fit well with the standard 22 to 23 mm overflow holesKeep the surface gloss and bright: our basin trim overflow drain cap covers are designed with good adhesion, classic color and nice corrosion-resistance, which will ensure a more gloss and bright surfacePlastic material: these bathroom sink hole round overflow covers are made of ABS plastic material, the cover is printed with chrome, look modern and shiny, suitable to decorate the overflow hole, won't block it, can use for a long time in the kitchen or bathroomWide application: our sink drain caps are suitable to match with most types of wash basin on the market, can be applied for home, hotel, shopping mall, factory and other places, please check your overflow hole diameter is compatible with our products before purchasing