Rectangular set comes with one pair of sterling silver rectangular cufflinks and matching tuxedo studs (set of four). This set is great for special occasions and weddings. Made in .925 shiny sterling silver with a ridged border. Sterling Silver. Display Beautifully in Included Jewelry Box. Cufflinks: Straight post whale backing. Studs: Fixed Back Straight Post. Dimensions: Approx. 3/4" Diameter.