Material: Glass Design & Color: May vary to the stock. Customer may no choose. Feature: Ideal for making magnets/pendants and other crafty things. Ideal for decorating your project by uing these colorful cabochon. Prepare a suitable base or items to be decorated, apply glue on the back of the cabochons, and press for a while. Widely Use for decorating rooms or make crafts. Size: 20mm Dia. X 6mm thick