Wange Mechanical Engineering 3-in-1 Catapult Constructor, 45 pieces

This Mechanical Engineering 3-in-1 Catapult Constructor introduces children to basic mechanics principles through hands-on building and play. From one set, you can assemble three different models to understand motion, force, and mechanisms. The constructor develops logical thinking, creativity, and problem-solving skills, while the clear visual instructions make the assembly process easy to follow. Key Features: Elements: 45 pieces for model assembly 3-in-1 building options Introduces mechanics principles: speed change principle, chain drive, and the role of the axle Instructions: clear visual guide Recommended age: 6