Pendulum on Stand, Length: 7.1in, Width: 2.4in, Height: 44.1in, Heavy metal stand with a meter scale mounted on a vertical rod can hold 2.5 cm bobs of wood, iron and steel suspended from a common hanger, A meter scale and a sliding index with projecting piece is provided.
Pulley Large Demonstration Double, Designed for Classroom Demonstrations, Light-weight, low-friction, and deformation-resistant plastic ensures accurate results, Open to make it easier for users to run pulley cords through them
Pulley, Single Sheave, Pulleys wheels are made of plastic and mounted securely in an aluminum housing with a hook on both the top and bottom for suspension, Size: 50mm