Fits on any HerculesAG Hornet Electric Livestock Prod. Our Flexible interchangeable shafts can withstand bending up to 180 degrees. Designed for use on livestock only. Measurement of the shaft is the length from tip to base. Handle (9 1/2 inches) is not included in measurement (not included, sold separately); Choose from 52",47" 42" 37", 32", 27", 22", AND 12".