The Bowflex TC6000 features an interactive LCD screen with the Bowflex Advantage User Software program, which allows for up to 5 users. The Treadclimber TC6000 is one of the largest Bowflex Treadclimbers, providing the feel and stability of a gym machine at the price of a home unit. The Bowflex Treadclimber is an all-in-one machine and can be used as an elliptical, treadmill, or stair stepper. The machine can turn from an elliptical to a treadclimber in seconds by simply locking a lever.