Yellow Gold Filled Spring Ring Clasps, 1/20 14K Gold Filled, Cadmium Free & Nickel Free & Lead FreeSize: about 6mm in diameter, hole: 1mm.Gold filled uses a karat gold overlay which is then bonded to a brass inner core. Our Findings manufactures gold filled with 1/20th 14K gold, meaning, it is 5% karat gold by weight with a brass inner core.
