Reebok jump rope - a new class of jump rope. Jumping significantly improves cardio endurance, burning up to 700 calories per hour of vigorous exercise, plus it can improve your balance, timing and coordination; essential for performing at your best in athletic sports. The tangle-free, flexible coated steel wire rope from Reebok features rotating handles meaning it can be rotated at a faster speed for a highly efficient workout. the3 rope is easily length adjustable and offers a fast smooth motion through every jump.