The Step Adjustable High Step Aerobic Platform with 4 Risers, Home Gym Workout Equipment, Fitness Stair Stepper Exercise Platform, Aerobic Exercise Equipment Made in the USABrand: Freestyle STEP Color: Grey Features: Made In The United States From Durable, Recyclable High Density Polyethylene The platforms overall dimensions are 16 L X 16 W X 4 H. Platform has premium, nonslip cushion top and supports 275 lbs. Four nonskid feet on each riser prevents sliding Or scratching floors. Quick and easy to adjust height. Change the difficulty of your workout according to your fitness level by adjusting your platform height from 4