PEPPERLONELY Brand 10 Sets Platinum Tone Brass Cabochon Frame Setting Tray Adjustable Ring Base with Clear Oval Glass Dome Tile Cabochon 18x25mm Quantity: 10 Sets Size: ring shanks: about 17mm in diameter; oval tray: 18mm wide 25mm long Glass Cabochons: about 18mm wide 25mm long 5.4mm(Range: 4.9~5.9mm) thick. Paste pattern or put some tiny beads in the tray then cover with the clear glass cabochon a pendant will be finished.