The GB-621E Elliptical Trainer features a rear 3kg flywheel with a belt-driven magnetic resistance system. The magnetic system provides a more consistent resistance during your workout and is easily changed by manually adjusting the 8 level tension knob situated on the front post. The computer console is simple to use and easy to read and gives constant feedback. Dual handlebars allow you to switch between a full-body workout using both the pedals and moving outer handles or you can work just the lower body by holding the stationary centre handlebars. The stationary handles feature hand pulse sensors to allow for a more accurate workout reading. This trainer also features transportation wheels fitted to the front stabiliser to allow for easy storage after use.