Lost the backs to your favorite pair...These best-quality sterling silver earnuts are just what you've been looking for! Marked ".925" on each earnut. Thick layer of 14K Gold over Sterling Silver Hypoallergenic, lead and nickel free Length 4.7mm x Width 3.7mm, Thickness 2.5mm Includes 4x Butterfly backs with Anti-tarnish AMYO storage bag Considered "fine" in size and work on slimmer posts. #F001