Bezel cups are settings that are designed to hold flat backed stones in place. When used traditionally, they are soldered in place. Since these are made of .999 fine silver, they can be embedded in all fine silver clays and fired in place. Use these bezel cups to hold any 4mm round cabochon or any flat bottom stone or element that will fit in the cup. Set stones after firing or fill the cup with resins, polymer clay or other non-fireable embellishments. Use a bezel pusher (also called a bezel rocker) to press the bezel walls against the stone to hold it in place. Burnish with a curved burnisher after setting to smooth.