DragonsHous Speed Jump Rope - Faster than Ever - Adjustable - Premium Quality for Workout, Crossfit Training, MMA, Double Unders, Boxing, Skipping - Ball Bearings - Aluminum Handles - 10 feet - Gold Speed Jump Rope, Ball Bearings, Adjustable Cable Wire, Aluminum Handles. Boost your Crossfit Workout, MMA, Double Unders, Boxing. Burns Calories, Improves Cardio Fitness. 10 feet. Gold