[At-Home Fitness: Aerobic step increases your fitness and promotes weight loss from the comfort of your home Adjustable Height: Adjustable design allows you to customize your workouts with 4 or 6-inch step height Features: Interlocking shock-absorption feature provides easy adjustability and keeps the stepper stable during use and durable construction includes advanced non-slip surface for safety while you exercise For All Fitness Levels: Excellent for all fitness levels and types of exercise including cardio and muscle strengthening Portable: Lightweight portable and easy to store and travel with for convenient on-the-go use; Measures 27.40 inches long 11.60 inches wide and 4.53 inches tall]