Rock Chic Collection Sterling Silver Polished Ball Stud Earrings Easy to wear for all occasions, discreet yet elegant, these studs are a must. Polished and spherical, they will just blend in with any style. Post and butterfly fitting. Mix them with a pair of hoop earrings from our 'Rock Chic' Collection to create your own unique layering look. Diameter: 6mm Fitting: Post