New heart pounding strength and conditioning product which provides a low impact high cardio workout through various easy drills. System created by John Brookfield and his "battling ropes" program allows you to whip large diameter ropes into unlimited wave motions which amp up the heart and burn large muscle carbs. Pick the size of rope to the size of your space and the progression of workout. Ex. 50" rope is doubled for 2 25" sides when working solo. Can also work in pairs. Premium rugged non-shed polydacron.