@sportompd26: Air Runner Non-Motorised Curve Treadmill Ideal for small group, speed development, and HIIT training for every fitness and skill level This is a non-motorized treadmill that allows a user to accelerate and decelerate with zero limitations on how fast, how long and how hard they train. The unique curved design of the treadmill allows a user to practice proper gait and running mechanics encouraging better posture while activating posterior chain muscles. Sought after by professional sports teams and