The G703 Jammer Arms by BodyKore are weightlifting accessories for serious lifters working to tone their back, arms, legs, and more. These arm-toning devices are designed for pro powerlifting to help you work out safely and efficiently. There are different detachable grips that you can adapt to the workout or preferences. The grips allow for a neutral or angled grip. Each arm is 39.25-inches long and has a 600lb capacity.