Metal: Alchemia Lead Free, Nickel Free, Hypoallergenic Baked lacquer finish to protect metal from turning or tarnishing Biwa Pearls: Approx. 9mm x 21mm. Bracelet Adjustable From: 7" - 8". Due to the one-of-a-kind nature of the Biwa Pearl, the color and shape pattern may vary slightly from the image shown All pieces are stamped or hallmarked for authenticity Handcafted and Artisan Made