Pulley, Single Plastic with Metal Housing

GSC International 4-16061 Single Pulley, Plastic with Metal Housing This black plastic pulley is 50mm in diameter. It has a metal housing and hooks at the top and the bottom. Durable Classroom Design – Features a sturdy plastic wheel housed in a rugged metal frame for reliable use in science labs and classroom experiments. Smooth Operation – Low-friction pulley wheel ensures consistent, easy motion for accurate demonstrations of force and motion principles. Ideal for Physics Education – Perfect for teaching mechanical advantage, redirection of force, and Newton’s Laws in hands-on settings. Easy to Mount and Use – Includes upper and lower hooks for quick setup with lab stands, ceiling mounts, or support rods. Great for All Education Levels – Suitable for middle school, high school, and introductory college physics labs and STEM instruction. ⚠️ Proposition 65 Warning for California Residents: WARNING: This product may expose you to chemicals including styrene and/or bisphenol A (BPA), wh