With the Skyrail Roller Coaster can be twisted to build the longest route in the world, winding paths of air that even glow in the dark and will be the main attraction of fun. Routes can be mounted in many ways: some are illustrated in the accompanying user, but you can invent many others. Skyrail not only goes down, you can accelerate when driving down steep slopes then climb up almost to a stop, roll quietly along flat surfaces, and then again to dive down at full speed. Skyrail is designed in such a way that most types of models of different sizes and of different materials, able to move along the paths (two types are included in this box). Each type of model will go at different speeds and will observe, experiment and discover the world of physics forces and to understand intuitively its basic principles.