Lion Professional Aluminum Jump Rope for Crossfit, MMA, Boxing, Martial Arts and Fitness PREMIUM DESIGN  Premium design, highly durable, primarily metallic construction with PU wire coating. Lightweight aluminum handles allow for easy high speed maneuvers such as double-unders or crossovers. Durable handles will never wear out and will provide a consistent grip every time. Tapered design for slip-free handling. PU-coated steel wire conforms to R.E.A.C.H. environmental protection legislation. WEIGHT LOSS & HEALTH  Burn calories, lose fat and develop lean muscle mass in no time with one of the most effective training aides ever devised. Train like the professionals, develop your physique and achieve your health goals. FULLY ADJUSTABLE  3m cable is fully and easily adjustable using the provided hex wrench and uses a discrete locking mechanism that won't accidentally come loose in your bag. Simply cut the cable to the correct length with wire cutters (not provided) and replace the rubber stoppers. Rope is ideal for men and women alike. FITNESS, CORE STRENGTH, TIMING & CO-ORDINATION  Develop core strength, balance, coordination, timing and stamina. Ideal for crossfit, MMA, boxing, martial arts, fitness and as a training aid for a host of other sports. 100% MONEY BACK GUARANTEE  If you are not happy with your jump rope for any reason, simply return it for a full refund.