Gym gear elite series leg extension is designed to work the quad muscles both legs at a time the movement of this machine is smooth and constant this machine has made sure it is padded in all the correct areas so you feel most comfortable this machine has got an adjustable leg arm so that you are able to get in and out of the machine comfortably you can also adjust the seat depending how tall you are key features of the gym gear elite series leg extension adjustable back pad to accommodate