Sure to add a cool design element to your project, this magnetic clasp is ready to grip and hold for a long time Simply add a quick-drying epoxy, like our Zap Gel, to the end of your cord, let it dry and away you go! With an inner diameter of 20 x 2.5mm, it’s the perfect clasp for our Tapestry looming project. In either Rhodium Plate (silver) or 14kt Gold Plate, it is lead free and made in the USA. Will fit most cords and leather up to 20mm wide and 2.5mm thick. Not recommended for use with someone wearing a pacemaker.