About this item 【550LBS Strong Weight Capacity】 You will feel safe and secure while exercising on this aerobic platform, since the grooved top increases friction and prevents slipping. In addition, the high-quality PE material and blow-molded construction also contribute to its high strength, allowing the top to support 550 pounds of weight. 【4 Risers for 4"-6"-8" Height Adjustment】 The adjustable step platform offers you 3 height options (4”, 6”, 8”) as it can be combined with extra risers. There are altogether 4 risers in the package and different combinations mean you can get an exercise platform for a variety of aerobic and strength training, such as squats, push-ups, high kicks, and more. 【Rounded Corners & Non-slip Protection】 This aerobic stepper is designed with the user’s safety in mind. Therefore, all of the corners have been rounded off to prevent accidental injuries caused by sharp edges. And both the top part and the risers have been fitted with non-slip pads to add extra stability, you can use it on any type of flooring without leaving behind scratches. 【Great for All Groups of Users】 There are no age, gender and experience restrictions on the use of this fitness pedal. Anyone can easily get started. Whether you’re trying to lose weight, build core strength, or maintain cardiovascular fitness, this fitness pedal can help you achieve your goals. 【Compact Size & Portable Design】 Attached with 4 risers, the overall dimensions of the fitness pedal are 28” x 14” x 4" - 6" - 8"(L x W x H), which is relatively small to facilitate your exercise at home. Meanwhile, the platform is lightweight and easy to carry. So, you can take it out to work out at more places, such as gyms or offices.