5-Piece Low-Friction Single Plastic Pulley Set, 50mm Diameter

This set of 5 single plastic pulleys features a 50 mm diameter and low-friction ball bearing design. Each pulley is mounted on an open-sided steel frame with hooks at each end. The open-sided frame eliminates the need for threading the cord, greatly facilitating setup. These pulleys are designed for physics education, suitable for experiments and demonstrations involving mechanical advantage, force, work, and simple machine principles. The low-friction design ensures consistent, repeatable results.