About This

• Linden wood
• 5-IN-1 DIY SELF ASSEMBLY SET: This wooden STEM kit requires full manual assembly. It includes 5 distinct models: solar fan, pneumatic boat, marble run machine, wooden airplane and magnifier. It delivers rich hands-on science building fun for kids.
• MULTIPLE SCIENCE PRINCIPLES LEARNING: Children learn solar energy conversion, circuit conduction, buoyancy, gear transmission and optical magnification theories while assembling each model, combining textbook knowledge with practical operation.
• SAFE LASER CUT BASSWOOD: Precision cut natural basswood has smooth burr-free edges, no sharp corners. Snap-fit design requires no glue or extra tools for stable assembly.
• ABILITY DEVELOPMENT TOY: DIY assembling improves hand-eye coordination, spatial thinking and problem solving skills. Ideal homeschool and classroom science activity away from screens
• COMPLETE ACCESSORIES & IDEAL GIFT: Comes with all parts and step-by-step illustrated manual. Perfect birthday and holiday gift for boys and girls aged eight to fourteen who love science experiments