demonstration pulley block mechanical physics experiment teaching science and education instrument single double three pulley two series connecting wheel 演示滑轮组力学物理实验教学 科教仪器 单双三滑轮 二串并连轮

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Breaking through mechanical challenges, the pulley group experiment device makes physics easier! Using metal pulleys, with single, double, and triple combinations, and flexible switching of series and parallel connections.

A clear demonstration of the labor-saving principle, making the motion and fixed pulley easy to understand.

ISO certification, durable and accurate, suitable for teaching demonstrations.

Step away from abstract concepts and conduct hands-on experiments to spark interest in science!