Morton® iOFIXT T-M Trace Mineralized Salt Block For feeding on pastures and ranges where grain, forage and water is deficient in sodium chloride and the six basic mineral elements that promote growth, reproduction, milk and wool production, and the general well-being of livestock. Scientifically formulated to provide a salt with six basic trace minerals commonly supplemented in livestock diets-cobalt, copper, iodine, iron, manganese, and zinc. 4 lbs. For all classes of Cattle, Sheep and Horses.