The DMI® Mini Stepper Exerciser is a low-impact exercise unit that replicates stair-climbing and has an adjustable resistance system. This mini stair stepper has a non-skid base and a built-in digital monitor that calculates your elapsed time and number of steps. The compact design of this step exerciser takes up a minimum amount of space, making it ideal to use anywhere. The dual hydraulic cylinders work independently, providing smooth steps while replicating the workout of a stair climber. This durable, high quality home exercise stepper is constructed out of heavy gauge steel, with high-impact plastic composite footrests. The adjustable resistance system allows the user to control the intensity of the low-impact exercise. The built-in digital computer tracks and records elapsed time and number of steps, and is powered by 2 AA batteries (included.) Four non-skid feet prevent the unit from slipping during use and this unit does not require any assembly. DMI Mini Stepper Exerciser Instructions for Assembly and Use DMI Mini Bike Exerciser Specifications: Unit dimensions: 13 inches wide, 16 inches long, 5.38 inches high. Pedal dimensions: 6.5 inches. Step Height: 16.5 inches long, 7.25 inches wide, 12.38 inches high. Step Width: 12.5 inches. Weight: 10 lbs. Maximum Weight Capacity: 250 lbs. Color: Chrome/Black. Materials: Heavy gauge steel frame, high-impact plastic composite footrests. Power: 2 AA Batteries (included).