Size: Per sink overflow ring caps the outer diameter is 1.18 inch, and the inner diameter is 0.55 inch, the height is 0.51 inch, Suitable for the standard 0.86-0.95inch diameter hole. Comes with 2 pieces drain cap cover is a good replacement of spare parts. (PLEASE MAKE SURE IT MATCH YOU SINK BASIN)Premium Material: The overflow drain cover is made of copper and ABS material, sturdy and durable, polishing and electroplating treatment, ensure surface gloss and bright. looks modern and shiny, smooth and not easy to rust, has a longer service life.Easy to Install: The overflow rings is decorates the overflow hole but does not block it, easy install no tools are required. Simply pushes in and clicks in to place, the internal plastic claws parts can be changed, please don't afraid to push it.Main Purpose: The overflow cover is used to cover the overflow hole to prevent water from overflowing, and at the same time, it can play a good decorative role.