The SKLZ Weighted Speed Rope is ideal for serious cardio training. Enhances coordination, agility, quickness, footwork and endurance stamia. Features weighted handles and a moderate swing speed weighted rope for added intensity. Soft grips are comfortable and easy to use. Swivel ends help to prevent tangling. Smooth rope tubing allows for free motion through the air. Each handle contains a removable 8 oz. weight. Adjustable length for users up to 6'6" tall. Instructional DVD included.