Each beads of this essential oil bracelets is handmade, using natural volcanic stones. Volcanic stones have different colors due to different internal elements, such as white, yellow, blue, red, pink, with braided and leather. To make the essentia oil bracelet more fashionable with our designs.Function:Lava stone of this essential oil bracelets is a rock formed after a volcanic eruption,the volcanic rocks are rich in minerals and trace elements,and can release trace amounts of infrared rays, promote cell metabolism, and enhance the body??s immunity. You can put perfume or essential oil on the volcanic stone, the smell can last for 3 to 5 days.Size:Adjustable braided rope,Min inner length is 6.9 inches.The diameter of chakra beads is 10mm.Purpose:Very Cool Essential Oil Bracelets for man women,couples,and gifts for you best friends. Also can use for Aromatherapy, Yoga, Meditation, Healing bracelets.If you have any question or problem about your lava rock bracelet purchased, please contact us. We will reply you in within 24 hours.