The Curved Barbell is made out of Titanium. Titanium is a very durable, strong metal. You never have to worry about it breaking, chipping, rusting, or corroding. It is a piece that you can wear anywhere. Beach, pool, ect. Titanium is hypoallergenic and by far the best metal for all your piercing. Even for the most sensitive skin. The star itself is made out of Sterling Silver.