Improve spring speed, strength, rate of force production, and acceleration with the Champion Sports Speed Harness! This training tool features a one size fits all foam padded shoulder and waist harness. Simply attach the nylon strap to the harness with one of the steel clips and attach the other clip to the foam padded tubular steel handle to begin practice. A partner holds onto the handle and controls the level of resistance while you run forward. The Speed Harness is perfect for track and field practice or any sport training.