The Boundless Sunken Artifact Ring combines tungsten, copper, and glowstone to form a beautiful composite. Each ring is handcrafted on a durable tungsten ring and glows in the dark. This beautiful matching set comes standard in 8mm and 6mm width. Sizing: For orders placed through Facebook or Instagram Shop, please contact us at support@patrickadairdesigns.com to give us your ring size. We will also reach out to you shortly after you place your order to collect any necessary information.