Buy Magnetic Clasp Fastener for Bags online with e-Magnets™ Primarily used in the making of bags, handbags, purses and fashion accessories but can also be used in gift boxes, packaging and other magnetic catch applications. The magnetic clasp is a two-part unit. The 19.4mm shaped magnet disc has a magnet sunk inside its recess; the 14mm diameter plated ferrous steel disc has a 4mm diameter protrusion. The smaller ferrous disc attracts to the magnet disc and is prevented from sliding because the protrusion fits into the recess of the magnet like a plug and socket. At the back of each are metal tabs which are to be inserted through slits you have to put into the material (e.g. leather) – bend the tabs over to hold each part in place.