Premium Large Trebuchet DIY Kit - 21 Beam Arm Launches up to 30 Feet! - Stem Learning - Explore Gravitational Potential Energy, Projectile Motion & Energy Transformation - Garage Physics by Eisco

Premium Large Trebuchet DIY Kit - 21 Beam Arm Launches up to 30 Feet! - Stem Learning - Explore Gravitational Potential Energy, Projectile Motion & Energy Transformation - Garage Physics by Eisco

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