This is a Genuine Natural Jade Cahain Bracelet . Material : Genuine Japanese Natural Jade Jade size: approx 10 mm Ceramic beads : approc 12 mm Inner diameter : approx 17 cm - 22 cm Condition : Excellent/ please check photo Please don't hesitate to contact me if you have any question!! Please see other items. https://www.etsy.com/jp/shop/YUMEYAKKOJapan?ref=hdr_shop_menu