SKLZ Recoil 360 Dynamic Resistance/Assistance TR Enhance strength and conditioning for sprinting, leaping, shuffling and change of direction with the SKLZ Recoil 360 DYN Resist/Assist Trainer. Train for all sport movements, alternating between resistance and assistance. Build leg strength and power for increased linear speed and lateral acceleration. Work with a partner or attach the leash to a stationary object. 8' flexi-cord safely stretches up to 20'. Partner safety handle for a safe effective workout. 360 degree rotation belt with free-motion ring allows for movement in any direction, adjustable for most sizes. Includes belt, flexi cord attachment leash, safety handle.