A smart, practical and easy to use solution for a wide range of excercises and an adjustable tension and effectiveness. A special "box" that depending on the side I choose has a different height. So it gives us the ability to perform jumps, one foot splits and squats and much more exercises of a Cross-Training program. The extra heavy construction makes it safe and it is the perfect solution for a home, outside or gym club training. In each side we see written the height of the box, in order to choose fast the exercise we are interested in.
Reinforcing piece of wood in the middle of the box helps to be more stable and prevents the bowing.