Treadmill Doctor Max Mat Bike/Stepper

Average current control, two-phase sinusoidal current drive output
DC 12 ~ 36V power supply, the internal integration of 12V and 5V regulator
Optically isolated signal input / output; overvoltage, under-voltage, over-current, and white short-circuit protection

High-quality StepMill with revolving set of 8-inch stairs for cardio workouts
Step range of 24 to 162 steps per minute; multi-stage fitness test and CPAT test
10 total workout programs, including fat burner, calorie burner, and intervals

Digital display tracks cumulative workout time, step count and calories burned
Perfect for small spaces – takes up less than 1 x 1.5 – feet floor space
Easy assembly

Elliptical Ramp Roller Wheel
Looks like a wheel from roller blades. Colors:
Blue,Geen,Orange,Black,Red,Brown,Pink Size: Appox. 4″ Diameter X 1″ W, size of bearing hole is 5/16″ about the size of a #2 pencil.Of Note: This roller comes in several different colors;