Exclusively Ours! Crafted of gleaming onyx and polished sterling silver, our round cufflink and stud set is embellished with a pin-dot-pattern black enamel rim. Includes two cufflinks and four shirt studs. Round onyx cabochons. Polished sterling silver. Cufflinks: 16mm face diameter, approximately; studs: 10mm face diameter, approximately. Cufflinks and shirt studs: button back.