Aerobic Step - 4 Step RiserAerobic Step 4 Step Riser Have a professional workout with our aerobic step platform that is made for commercial gym grade use. The aerobic step features advanced anti slip surface design and a wide stepping platform. You can even adjust the height to the level that you feel is most comfortable to train by stacking the four (4) step risers. It is an excellent tool for improving cardiovascular fitness, training your body coordination, burning fat and