This Magsafe Tm rim clasp Patent USD688,153S is suitable for any 6mm flat back cabochon or crystal. Decorate with fimo, resin or crystal clay. Make a small beaded motif and glue in. Customise your clasp to match your jewelry. This clasps has all the benefits of a secure magnetic design with endless possibilities of customisation. Like a regular Magsafe TM clasp, the special design means that the clasp will not fall off your wrist when dragged by clothing or a handbag. Just lift the cap section up off the base to open and put it over the base to close.