King Will Aurora 8mm Black Tungsten Carbide Wedding Ring Black Skull Pattern Inlaid Green Luminou Glow IDEA: Unique luminous ring, glow in the dark, made of safe and eco-friendly material. STEP: Take the ring in the sunlight or flashlight a few minutes(let it catch more light), it will bright a lot. Suitable for weddings, formal, business attire and an overall polished shirt finish look, best gifts for men, women, boyfriend, husband,wife,girlfriend King Will's jewelry box, save your giftwrap service fee, and help you store the ring much safer and longer. If you have any question, please post into "Customer Questions & Answers" at the bottom of this page.