Designed to engage kids in early STEM and engineering development, the Autobahn encourages children to expand their creativity and engineering abilities! A creative take on the marble run, the Autobahn provides a great mix of drops, high velocity seesaws, and speed that will have marbles going as fast as the cars on the famous highway! This 175-piece set includes straightaway rails, accelerators, seesaws, and marbles for swift and exciting fun. Made with wood sourced from environmentally sustainable forests. Durable child safe paint finish and solid wood construction make this a toy your child will love for years to come.