Pulley Triple Parallel, Sturdy Aluminum Wheels 50mm Diameter

GSC International 16084 Triple Pulley   This triple parallel pulley is made of low-friction aluminum and has a metal housing and hooks at the top and the bottom. Its wheels are 50mm in diameter. Three Pulleys in Parallel: Features 3 identical 50mm pulleys for conducting multi-pulley experiments. Durable Design: Built with a strong cast metal frame that is powder coated for extra durability. Deep Grooves for Security: Pulley wheels have deep grooves to securely hold cords in place during experimentation. STEM Education Tool: Perfect for demonstrating the principles of force, motion, and mechanical advantage in physics.   ⚠️ Proposition 65 Warning for California Residents: WARNING: This product may expose you to chemicals including lead which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.