The marquise-shaped Invisible Clasp is one of our top favorites: very dainty, what with the pointed ends and all, yet still very much unisex. When used to close two ends of a chain together (or to connect two chains), the pointed recesses on either side effectively hold the chain’s (or chains') end links in place. Plus the arcs make for the perfect cradles for charms! One side/arc contains the incognito hinge that snaps open and shut for easy sliding in (and off) of chain links, charms and other clasps/connectors.