Introducing the world's first curve treadmill powered by patented VPR(TM) resistance. The STEPR TREADSLED(TM) isn't just a runner... It's also a sled-push machine. Switch seamlessly between smooth, free-running strides and full-resistance sled mode with a flick of the switch. Whether you're sprinting, pushing, or powering through intervals, TREADSLED(TM) adapts to your effort in real time with over 100 'virtual' levels of scalable air resistance. Built for elite performance centers but intuitive enough for anyone to use. Features: VPR(TM) turbine resistance Slatted curve belt Dual-mode treadmill/sled Bottle & phone tray Manual pitch lever