The Freedom Staff Is the only Portable Handicap Hand Controls Product that also comes with a steering knob, so you can easily handle the wheel with your right hand while operating the hand control device with your left hand. Unlike some inferiorly designed products, you do not have to try to control the pedals with your thumb that is very difficult and will fatigue your thumb very fast. This revolutionary design allows you to accelerate by gently pulling the lever toward you and to brake by gently pushing the lever toward the floor. It is so smooth that it's actually easier than driving with pedals. Built with aircraft grade aluminum, stainless steel hardware, and convenient carry bag, your freedom staff will be your good friend for life