Brass Magnetic Clasps, Oval, Silver. Size: about 17mm long, 10mm wide, hole: 6mm. These magnetic clasps are great for necklaces. Each end is magnetic so make sure to align magnets in correct position before completing your project. They are also for bracelets, just add to the end of your DIY bracelets crimp in the hole. Buy this and Save 40% OFF 2 Sets Silver Color Oval Brass Magnetic Clasps for $0.64 @PandaHall