Included is a set of four studs and two matching cufflinks Enclosed by swivel action backs, this stud set is easy to put on with the added advantage of security This David Donahue stud set arrives in box for heightened presentation Featuring an onyx inlay and proudly made in the USA David Donahue leads in variety, style, and design in men's fashion accessories Included is a set of four studs and two matching cufflinks. Enclosed by swivel action backs, this stud set is easy to put on with the added advantage of security.