Wonder Core aerobic step Are you a fan of aerobics and do you want to make your training more intensive? Then add this Aerobic Step from Wonder Core to your training. By adjusting the height you vary the difficulty of your workout. In addition, you improve coordination and endurance with a step bench. Moreover, the scooter is adjustable in 2 or 3 heights. Aerobic steps are good for fitness and balance A step training is known that you mainly work on your fitness by continuously getting on and off the step. That is why it is important that the scooter is stable and firm during training so that it does not slip. Fortunately, the Wonder Core fitness step has an anti-slip bottom and top so that you can safely step.