The Stairmaster Stepmill is the original real stair stepper machine which offers the user a real stair climbing experience. The Stairmaster Stepmill has used a revolving staircase which can vary in speed enabling the machine to simulate walking or running up a flight of stairs. Each step is a full 8” high which gives a complete stair climbing reality of motion. This machine has become somewhat of a staple in any health club or gym and is always sought after by members thereof.