Hoops are crafted of Sterling Silver and measure 20mm in diameter. The stones have a diameter of 10mm. Each piece is created in Manchester, UK, employing Labradorite that is quarried in Madagascar. Labradorite is renowned for its ability to help one to quickly recognize and navigate through illusion. In order to maximize the lifespan of this item, avoid contact with moisture and treat it with gentle care. If there are any questions, please do not hesitate to reach out.