This ring pieces of opal to give it the beautiful color. The ceramic band makes this ring durable and scratch resistant. This ring contains crushed Caribbean Opal, and blue glow powder. The band is made from black ceramic. The glow powder is quickly charged in sunlight and will glow in the dark for many hours. The ring inlay is sealed with Cyanoacrylate. This provides a durable, scratch resistant, and water-resistant finish. Size 5 Glows in the dark after charging in sunlight Bought the wrong size and cannot return True to size