STEM Toy, Wooden Bicycle, Montessori, DIY 3D Puzzle, Eco-Friendly Handmade Educational Toy

The STEM Bicycle explains the mechanics behind one of the most widely used human-powered vehicles. Featuring pedals, gears, levers, and chains, the model shows how simple machines combine to turn motion into forward movement. With its realistic design, it helps children understand concepts like wheels and axles, torque, and force transfer, making it a practical tool for learning physics in everyday life.

• Eco-friendly STEM toy with easy assembly
• Screen-free Montessori toy that makes learning interactive
• Demonstrates levers, gears, and chain-driven mechanics
• Connects kids to the science behind everyday transport
• Builds curiosity about motion, design, and engineering