11x11mm Copper Plated Magnetic Clasp. This new, elegantly styled copper plated brass clasp is a combination of form and function that makes it an ideal choice for your fashion jewelry designs. The super strong magnets allow for easy, self-aligning closure, which means no more fumbling to close clasps on chains, necklaces and bracelets! Magnetic clasps should not be worn with pacemakers. Sold individually.