Loose blocks for your aerobic step. No athlete is the same and each person has their own challenges. During classes, steppers adjust the intensity levels by putting blocks under the step. Challenge your athletes, offer the right workout tools and stimulate a little more with these Tunturi blocks.The benefits of the Tunturi Foot Blocks for the Aero Step:Solid and professional step blocks for stepping classesStimulate and challenge athletes by adjusting the heightOrder the Tunturi Aerobic Step Pro today and offer your athletes an even greater stepping class!Overview specifications:Material: syntheticColor: blackSize