The Freedom Hauler is an extension of your fifth wheel. It is equipped with a Pressure Sensing Steering Axle (PSSA). When pressure is applied from turning, the wheels will automatically steer! The Freedom Hauler has an on-board compressed air system which is used to change the position of the axle when traveling forward and rearward. Affixed to the axle system are 2 Firestone airbags. One is inflated when traveling down the highway. The other will be inflated when you shift into reverse.