The ultimate adjustable crossfit workout JUMP SPEED ROPE to create greater fitness! FAST & EASY- Ten minutes of jumping rope brings fitness results equivalent to thirty minutes of jogging. PORTABLE WORKOUT - Exercise on vacation, to the park or in your own personal space. CHALLENGING & FUN - Learn double-unders, side straddles and alternating jumps by yourself or with your workout buddies. INTENSE FULL BODY WORKOUT - Core stability training, your legs for jumping and your shoulders and arms for turning the rope. IDEAL WARM UP DRILL - Increase your heart rate and body temperature before a cross-fit, boxing or weights session.