Magnetic Necklace Clasps With Safety Catches - Set of 2 Magnetic necklace clasps with safety catches - set of 2 - is easy and affordable! One end of each clasp has a traditional lobster claw closure, and the other end has a spring ring. Each package contains two magnetic clasps - one Silver Tone and one Gold Tone. Fasten your necklace chain to the magnetic clask, and snap the two magnetic ends together to close. For extra security, close the small safety catch - and voila! Your necklace is now easy on, easy off.