Black Onyx Crystal Bead Bracelet , Genuine Black Onyx Stretch Gemstone Bracelet, Healing Crystals, Gift for Men & Women Round bead size is about 8mm (0.31 inches) Bracelet length is about 7.5 inches Handmade with double - deck elastic and flexibility rope. Suitable for men and women of all ages, GREAT gift for friends/lovers Each Bracelet is unique, shapes, sizes, colors, and patterns of these gemstone bracelets may vary as they are natural stones