A 3 strand base metal magnetic clasp, great for people who have trouble doing up bracelets or necklaces. Available in bright silver or bright gold, sold per piece. Total length of clasp: 19.5mm, width: 5mm, distance between loops: 5mm. These magnetic clasps are unusual in that they are two separate pieces that slide into each other, with a magnetic component to hold the clasp in place. These are of medium strength - however due to the construction of them, they are more suitable for slightly heavier bracelets and necklaces. Please consult your doctor before using magnetic beads or clasps if you use a pacemaker or other electrical medical devices.