One of a kind fun and colorful earrings to wear anywhere. The materials are oxidized sterling silver, fine silver bezels, 18k, and blue opal wood. Please note the bezels can take on a golden hue 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. Size is 1 3/4 x 5/8.