Physical activity in the open air brings with it many advantages: rest, exercise, fitness, health and so on. "Obstacle course" manufactured by Lars Laj is a great idea for outdoor activities, with durable devices designed for the development and fitness. Double jump bars are part of the outdoor line of sports equipment, which main task is to practice coordination and balance. Double jump bars allows balance - a beginner below, advanced above, and develop agility. Another exercise is to skip the higher bar with a lower clearance. In short, we can engage in a variety of ways to exercise the entire body, with particular emphasis on motor and coordination skills.