Awesome round cabochon tray! These are one-sized pendant trays with flat backs and a versatile closed loop on each size of the tray that can be used for bracelet,earring,pendants and more Made of brass, lead and nickle free Flat Pad Dia: 10mm,12mm,14mm,16mm,18mm,20mm,25mm,all sizes stated is for interior size,7 sizes are available for your choose Color: gold/rose gold/rhodium/gun black/antique bronze, 5 colors are available for your choose Sold by 10 pcs in a lot.note the bezel wall is flat on the side .The depth of the bezel is 1.5mm-2.0mm