Use the Miller Replacement Power Pak Handle Assembly for Springer Magrath Stock Prod. to safely encourage cattle and hog animals into motion. This replacement handle delivers unparalleled performance in all conditions, especially on wet animals. Constructed to be a dependable tool when farming, the featured electric prods are a time-tested, humane way to aid in livestock movement. Grooved finger guide allows finding the switch by feel, even with gloved hands; rubber switch insulator prevents feedback. Precious metal battery contacts won't corrode, and heavy coil spring assures firm battery contact. Four high-energy, longer lasting alkaline batteries included. Housed in a tough, structural-grade plastic case for reliable service. Every unit is factory tested to high-performance standards, making it the ongoing brand of choice for farmers, ranchers, and professional stock handlers and haulers. Keep the replacement handle dry for the best performance. The replaceable handle includes 4 alkaline batteries. Touch the livestock animals lightly and effectively with the Miller Replacement Stock Prod to assist in the movement of cattle and hogs.