The stack includes three distinct bracelets, each utilizing 8mm round beads on a flexible elastic cord for a comfortable, one-size-fits-most design: Rainbow Aura Hematite: These beads are natural hematite treated with a titanium coating to create a vibrant, iridescent "rainbow" finish. Polished Hematite: The dark, gunmetal-grey beads are classic polished hematite, known for their high-luster metallic shine and weight. Black Lava Stone: The porous, matte black beads are natural lava rock (basalt). Because of their texture, they are often used as essential oil diffusers; a drop of oil can be applied to the bead to provide a long-lasting scent. Key Benefits & Uses Grounding: Hematite is a popular stone in "healing crystal" circles, often used for grounding energy and improving focus. Aromatherapy: The inclusion of lava stone makes this set functional for those who use essential oils for stress relief or focus. Magnetic Therapy: Some variations of these bracelets use magnetic hematite, which is used to help improve circulation and reduce joint pain. All of our beads and jewelry making supply are new and top quality. A lot of our bead supplies come from small specialized studios from around the world, and the quality shows. We appreciate you visiting our bead collections and I would like to thank you personally for stopping by.