PEPPERLONELY Brand 100PC Mixed Brass Adjustable Ring Base with Glue On Pad Quantity: 100PC Size: about 17mm inner diameter 19mm in diameter; tray: about 10mm in diameter. Mixed Color Brass Pad Ring Bases These brass pad ring base components are shiny and glossy with metal appearance. The round pad bases are used for pasting the appropriate size beads cabochons or rhinestones. The rings look more beautiful and unique after decoration. They are adjustable according to the size of the finger.