Monorail trolley equipped with ball bearings. Suspension harness control and motivation of walking in children. It includes a friendly and attractive flat worm separator acts as a guide, directing and preventing the march cross, which can be removed easily. For its all-metal construction and the section of the material used, while the weighted motherboards, has achieved a great stability. The height of the ground bases has been reduced to a minimum, facilitating the passage to the nightlife. Adjustable in height by means of pins which are hidden in the upper columns. Adjustable width to be folded. Auctions chrome and polyester. Length 250 cm.