Science & Play: BUILD Mechanics Laboratory Planes& Helicopters Animals-Pets small triangles

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Science & Play: BUILD Mechanics Laboratory Planes& Helicopters Animals-Pets small trianglesDiscover the secrets of aerodynamics with Mechanics Lab Aeroplanes and Helicopters! A scientific kit for discovering and experimenting with the mechanics of flight. With 10 models and 200 components to assemble, including: rods for assembling the nacelles, panels, propellers, cogs, pulleys, and universal joints. The illustrated manual will show your child how to assemble the various models for endless hours of fun! Age target: 8 12+ yrs Box size