Beautiful cornflower blue authentic sea glass ring in a small "bicycle seat" shape with a hypoallergenic, nickel free, sterling silver plated adjustable ring base. Bottom closure style. Fits Sizes 7 to 9.5 most comfortably. Weight~ 0.2 ounces, Height~ 0.77 inches, Width~ 0.5 inches, Depth~ 0.25 inches. (Slightly wider than a penny)