These are earring findings with genuine rhodium plating. They have a luxurious feel, and I've been repurchasing them because they were so good to use. From the manufacturer's page below: ━ Genuine Rhodium Plating ━ ※ By using (white) gold and coating it with rhodium, it is more resistant to discoloration than conventional rhodium colors. ※ Coating with a metal that has a higher rhodium content further enhances the sparkle and makes it last longer (compared to standard). 13