This Cardio Kids Stepper is built tough for heavy usage. Designed with an almost infinite adjustability for tension and speed control - the shock can be mounted in any of three positions depending on the average user weight. Shipped freight, fully assembled. The Stepper has hydraulic adjustable cylinders quickly change resistance levels. 42"L x 30"W x 56"H. Weighs 95 lbs. Recommended for ages 14+.