One of the functions of "obstacle course" by Lars Laj playgrounds, is practicing of coordination. Such exercises can be carried out following the example of the movies - balancing on a beam suspended from the roof of a high building - although it is a bit dangerous. Hence Lars Laj is happy to introduce alternative external sports facilities that allow physical activity outdoors, keeping balance at a safe distance above the ground. Made of impregnated larch wood, balance device is an investment for years. On the one hand, very durable and resistant to weather conditions, the other often used by adults and by children, enjoys a unique popularity.