Barrel clasps are a great design element to complete and close your bracelet or necklace securely and fashionably. Each end of the barrel is magnetized, making it easy to latch. Details:Available in multiple colorsSmooth finish4 claspsWARNING: Magnets can cause medical devices to malfunction. Individuals with internal pacemakers, internal defibrillators and insulin pumps should avoid items containing magnets or magnet closures.