Power rope - 1.5" diameter x 30 ft (17 lbs) for undulation battle training. aside from the obvious use as a tug of war rope, a pair of users will grab each end and swing it every which way to keep the opposing user on edge to maintain footing and balance. just a couple of minutes of this activity will leave you breathless! regular undulation training will greatly improve agility, coordination, and endurance. features: excellent combination of aerobic and balance training with minimal impact! made of waterproof 50/50 polyester/danline for use outdoors black in color to hide dirt non-slip rubber handle grips rope diameter: 1.5" (38mm) rope length: 30 ft - our shortest undulation power rope rope weight: 17 lbs begin making waves today!