Plastic 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. full, does not block it, can be used for a long time in the kitchen or bathroom 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 some soap on them can help slide easily without breaking the cap cover feet, easy for you to install Standard size: 30mm/1.18in, and the inner diameter measures approx. 20mm/0.78in, fits standard 22-24mm overflow holes well. 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 applications: Our sink overflow rings match most types of sink on the market, can be applied for home, hotel, shopping mall, factory, business and other places, a simple and practical accessory for decoration.