Plastic material: made of ABS plastic material, the cover is printed in chrome, looks modern and glossy, decorates the overflow hole but does not block it Easy to install: finished wear-resistant chrome matched with faucets, easy to install, put some soap on it, slide it easily, and don't break the cap feet Keep the surface bright and shiny: plating layer with good fine adhesion, uniform color, excellent corrosion resistance, ensure surface gloss and shine Most suitable: these sink drain plugs match most types of sink in the market, suitable for home, hotel, shopping mall, factory and other places Size: outer diameter is approx. 30mm, and the inside diameter measures approx. 20 mm/ 0.79 inch, height is approx. 16 mm/ 0.63 inch, suitable for standard 22-23 mm overflow hole, 9 drain cap covers are enough to use, also have spare parts for good replacement