Prototypes for the WalthersProto HO Scale 65' Mill Gondola are workhorse freight cars of the steel industry. From raw materials to finished goods to scrap metal, the steel industry has long been big business for railroads. Based on a Thrall mill gondola design, the WalthersProto model is accurately sized with sharply molded ribs and rivets that match prototype photos and drawings. Grab irons and ladders are factory applied separate parts. The car's underbody features separate brake components and piping.