A challenging, resistance-based Tower workout is now as close as your nearest door with Tower on the Go. Quick and easy to set up, with sturdy components that will not scratch your door. Just wrap the two adjustable anchor straps vertically around any standard door, adjust the slider-clamps to your desired height, then clip on resistance bands or springs. You are ready for a great workout! Innovative design allows unlimited possibilities for adjusting the angle of resistance. Kit includes two cotton loops plus two door straps with sturdy, non-abrasive attachment points and two long yellow springs. Tower on the Go works on doors up to 7’4″ (2.2m).