Round 4-Prong Basket Double Notched Stud Earring MountingsThese round 4 prong basket with double notched friction post earring mountings have been expertly crafted using a metal mold to ensure a precise finish. The stud settings feature a double notched friction earring post for added security. These high quality semi polished settings are intended for faceted gemstones, require notches to be cut according to your gemstone with the proper tools and skills to set and finish. Ssemi polished settings only,