Noa Store 10 ft Adjustable Skipping Jump Rope, Speed Rope Ideal for Aerobic Exercise, Speed and Endurance Training… $5.99 Make sure this fits by entering your model number. It is Effective in building your endurance, stamina and reflexes. This jump rope outlines a number of highly effective workout techniques to improve your training. This Speed Rope is a great option for someone who wants a quality jump rope, but does not want to pay a premium price. A speed rope is a must have for any cross-fitter.