High Quality Material:Made of high quality ABS plastic, better grip than metal,will not scratch the basin. Suitable SizeFit standard 22mm-24mm overflow holes. The package includes 6 pieces drain cap cover,which is enough for daily use. You can choose different styles of overflow ring according to your needs. The Surface Gloss and Bright:Plating layer with good adhesion fine, uniform color, excellent corrosion resistance, ensure surface gloss and bright. Easy to Install:Simply pushes in and clicks in to place, no tools are required;Decorates the overflow hole but does not block it. Wide ApplicationThe sink drain caps fit most types of wash basin on the market,Suitable for shopping mall,home or others places usage,fit perfectly and remain fastened. 6 Packs sink overflow ring cover bathroom sink hole trim overflow cover round hole insert spares for bathroom kitchen sink basin replacement Specifications: Material: ABS plastic Outer diameter: approx. 1.18 inch/ 30mm Inner diameter: approx. 0.78 inch/ 20mm Suitable size:Fit standard 22mm-24mm/0.87 - 0.95 inch overflow holes Color:silver Handy to use: Simply pushes in and clicks into place, no tools are required. Package includes: 6 x Sink overflow covers Warm notice: Manual measurement, please allow a slight size error.