Low-Impact Aerobic Side Stepper Hydraulic cylinders offer resistance that's easy on your joints. Easy-to-adjust resistance enables you to customize your workout level. Steel, non-skid frame with a wider footprint provides durability. Aluminum, plastic. Measurements: 20" x 13" x 8". Weight: 18 lbs. Weight Capacity: 300 lbs. Care: Wipe down with a soft cloth.