Three pairs of round cubic zirconia studs in silver-tone prong settings, sized small, medium, and large at 0.4 inches across the largest pair. The right set to pull from on a weekday morning when the outfit calls for something polished but the day calls for nothing fussy. Brass base metal, glass cubic zirconia stones Silver-tone prong settings, post-and-butterfly backs Three graduated sizes in one set, 0.4" at the largest Wipe-clean care, made in China