Metal: Alchemia Lead Free, Nickel Free, Hypoallergenic. Baked lacquer finish to protect metal from turning or tarnishing Abalone: 18mm x 25mm. Length of Earrings including Hook: 1.75". Due to the one-of-a-kind nature of the abalone, the color and shape pattern may vary slightly from the image shown. Handcrafted and artisan made All pieces are stamped or hallmarked for authenticity