2 Exciting Vehicles in 1: This Science Museum Mechanics kit lets children create a classic Hot Rod or a fantastical Rocket Truck, both featuring working gear mechanisms for realistic movement. (90+ pieces) Learn Through Play: The included illustrated manual provides clear step-by-step instructions, guiding young engineers through the assembly process. Sparks curiosity and ignites a passion for STEM subjects. Interactive 3D App: Download the free "Science & Play Build" app to enhance the building experience! Explore interactive 3D animations of both models, bringing their mechanics to life. (Compatible with most devices) Develops Key Skills: Encourages problem-solving, spatial reasoning, fine motor skills, and an understanding of basic mechanics. Perfect for solo or collaborative play, fostering creativity and imagination. High-Quality Materials: Made in Italy from durable, child-safe plastic. Designed for long-lasting fun and exploration.