OverviewSAFE AND NON-SLIP: The surface of the step platform is non-stick, non-slip and shock-absorbing, it can ensure you exercise easily and safely. The textured surface of the air steps prevents slipping, and the non-slip rubber feet provide stability and protect your floor. WEIGHT CAPACITY: Heavy-duty polypropylene material gives the stepper a high weight capacity of 440 pounds. EASILY ADJUSTABLE HEIGHT: The air treadmill includes adjustable risers under the platform. The platform can be used without risers at a height of 10 cm. You can increase or decrease the intensity level of your exercise simply by adjusting the aerobic step height from 10cm to 15cm to increase your exercise intensity. The step platform is made with rubber feet to prevent floors from slipping and scratching during exercise. IMPROVE FITNESS: Great for all levels of indoor exercise classes to help train endurance, strength and improve overall fitness. Durable environmentally friendly PP construction and advanced injection molding technology ensure no harm to human health. MULTIPURPOSE: Great for exercise classes and regular home use, you can practice anywhere in your home, office or take it with you to your friends house!