Beautiful Design:Black tourmaline crystal bracelet beautiful and comfortable to wear, suitable for daily wear, is the perfect accessory to wear during work, your gym classes or any other daily activities.can help you draw other's attention,you may feel the positive, peace and keep enthusiasm in daily life . NATURAL MATERIALS :Each black tourmaline bracelet is made of natural tourmaline.100% natural tourmaline beads . ADUSTABLE SIZE:There are two pack of tourmaline bracelets .the small one and the big one .two of tourmaline bracelets can used for women and men.The perimeter of big bead tourmaline bracelet is 8 inch (stretch), The perimeter of small black tourmaline crystal bracelet is 7.20inch(Stretch) The unisex bracelet is strentch and came with 2 extra elastic bands.(You can adjust by yourself if the tourmaline bracelet is big or small) . PACKAGE INCLUDES:2x Black tourmaline crystal bracelets ,2x Elastic bands,1x Jewelry box,1x Velvet bag . PERFECT GIFT: Unisex, tourmaline crystal bracelet and black tourmaline necklace is good Matching for Men and Women. A great gift for your families and friends in Mother's Day Father's Day ,birthday, thanksgiving.ect. suitable for anyone, will make them happy .