ProSource Speed Jump Rope 10&rsquo; Adjustable Length, Plastic Handles, Fast Turning for Cardio, Boxing Thin rope with lightweight plastic handles is fast and easy to turn, great for double-unders, and targeting reflexes High intensity helps burn calories while improving endurance, coordination, agility for total body conditioning Durable vinyl-coated wire cord is fully adjustable up to 3 m - just cut and screw back on; Fits anyone Perfect for beginners and trained athletes. Ideal for tennis players, runners, boxers, and cardio Compact, colorful design is great for travel, the gym, outdoor, or home workouts. Makes learning easy!