Loving these one of a kind earrings, ready for dinner out, a party, a walk on the beach. the materials are blue opal petrified wood and sterling silver, fine silver bezels, and turquoise beads, oxidized with a french hook. The size of the earrings are 3 x 3/4. Please note the fine silver bezels can take on a golden glow from the oxidation process. for care, please do not use a polishing cloth as that can alter the patina. you can swish in warm sudsy water, rinse and dry.