uGems 2 Sterling Silver Converters Magnetic Clasps (2 Sets) 2 Magnetic sterling silver tiny clasps, strong, converter for necklaces It is 4mm diameter, 16mm on converted necklace,size, with also a spring ring attached. USA Made Super strong rare earth mineral magnets with sterling silver. USA Made DO NOT USE IF YOU USE A PACEMAKER, INSULIN PUMP, OR DEFIBRILLATOR 1 specified buys 2, 3 buys 6, etc. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!