This diffuser bracelet features two types of beads: 4mm coffee hematite beads and 6mm lava beads. The hematite is an iron-based stone known for its healing power with respect to both physical ailments and mental distress. It decreases negativity and anxiety by balancing the body, spirit, and mind. Specifications: Bracelet Length: X-Small (6”), Small (6.5”), Medium (7”), Large (7.5”), and X-Large (8”) - The pattern may change slightly to adjust to the different lengths. Bead Size: 4mm and 6mm Bead Types: Hematite and Lava Beads Strong and durable It will never rust, tarnish, corrode, or stain. Waterproof Hypoallergenic Nickel free No maintenance Visit the Diffuser Jewelry Collection to see similar jewelry.