Horseshoe.I think it may be brass ? I think this as, while most of the shoe is the same color, a part on the back is 'shiny' and the metal looks like brass or something.Weighs 11 ounces.Is about 5" at its longest, 4 1/2" wide, and the 'opening' is about 2".Condition is "Used".Shipped with USPS First Class.