3 Adjustable Height: Simply change the risers, and you could adjust height level (5 inch, 7 inch, 9 inch) for multiple workout intensity. The flexibility of GYMAX aerobic stepper makes it a perfect additional for home gym, which allows all family to use. Safe Non-slip Design: Textured surface of this stepper is non-slip and shock-absorbing with serried raised particles, bringing strong grip and ensuring better safety. Coming with non-slip foot pads, which guarantees your safety and protects your floor from scratch at same time. Compact & Potable Design: Just insert the risers underneath the platform, you can store this platform anywhere easily. With light weight of 6lbs, this aerobic stepper is definitely an excellent exercise tool for you to carry anywhere. Superior & Reliable Material: Made of ABS material in high density and tenacity , the stepper is strong enough to hold up to 330LBS maximum weight and maintains the shape to accompany you for long time. The corrosion-resistant PP material is also convenient for easy cleaning. Enhance Aerobic Workout: Use this aerobic stepper as a tool to strengthen your body power and burn more calories to lose weight. This versatile stepper is ideal for regular workouts, such as push up and mountain climber, split-squat, etc