Giantex 29&iexcl;&plusmn; Aerobic Exercise Stepper Platform Adjust 5" - 7" - 9" Fitness Step w/Risers Removable Three Levels  Three levels that can be stackable are very convenient to meet various needs, adjustable height is about 4.7  6.7  8.7. Suitable For Teenagers  Could weight capacity about 220 Lbs, its suitable for teenagers, the platform surface is non-stick, non-slip, and shock-absorbing. Good For Your Health  The 29'' aerobic step will enhance your aerobic workout and take your cardiovascular fitness to the next level. Easy To Carry  The platform size is not large, its lightweight and easy to carry and assemble and does not take much to carry it. The stepper is ideal for work out classes or regular home use, either at home or in the office. Convenient In Assembly  The Giantex platform is easy to assemble and the all required accessories are included. You can quickly assemble the item and use it in a clear and easy-to-understand manual.