The Resistance Chair supplies me with an exercise option that I did not have before. I have extremely bad balance, and had to give away some of my other exercise equipment. This chair is very stable, provides exercise options for all body parts while you are mostly sitting, and it is possible to obtain a bicycle attachment that turns it into an exercise bike. It also requires NO assembly, no tools to change the pulleys or attach the bike, and folds up like a regular folding chair. I am disabled and this chair is a terrific addition to my battle against deterioration of muscles.