An aromatherapy bracelet made with black lava stones. Just add a couple drops of essential oil to the lava stones and allow to soak in, then enjoy the scents as you wear the bracelet. The porous nature of the lava stones soak up the oils, allowing the scents to last for 1-2 days depending on the strength of the oils used. A great bracelet for men!! Materials: 12mm Black Lava Stones 8mm Sodalite Stones 8mm Hematite Beads 8mm Czech Glass Beads Clear Latex Free Stretch Cord 10mm Nickel Free Silver-plated Bead Adult Size: 8 inches I will gladly resize if necessary. Just leave me a note in the Notes from Buyer section when checking out. To determine size, measure your wrist then add a half inch for a snug fit or a whole inch for a loose fit. For example, if your wrist measures 6 inches, a 6.5 inch bracelet will be snug and a 7 inch bracelet will be looser.