DescriptionThis item is made of volcanic stone beads and alloy. Natural materail, to human. It is not only a fashionable decoration, but also servers radiation-proof function. Can boost blood circulation so that people have a good sleep. It is said that volcanic stone bracelet will help you to remove bad luck.Feature- Color: Black - Material: Natural stone - Size: Approx. 19.0 x 0.8 x 19cm. - Fashionable volcanic stone beads bracelet, polished by machine. - It offers some treatment process function - Natural material, to human. Radiation-proof and boost human blood circulation. - This is a great gift for girlfriend, fiancee, wife and couple.