Built for tough farm use, the Cotran SharpVet Metal Head Balling Gun is a carbon steel, chrome-plated applicator designed for reliable dosing of livestock. It features a screwable, interchangeable metal head and spring mechanism for durable, repeatable performance. The 18 in length offers reach and control, with head options in 1 in or 5/8 in to match your application. A dependable piece of farm equipment for administering livestock health products under veterinary or manufacturer direction.