Description: Demonstration Pulley Experiment SetThis is a physics mechanics experimental equipment, specifically designed for middle school studentsfor exploring the functions of fixed pulleys and movable pulleys. MaterialThe Fixed & Moving Pulley Physics Experiment pulley set is made of pp and metal materials that ensures its longevity and maintains its functionality over time. FunctionAn essential physics experimental equipment for students and teachers, to investigate the mechanical advantage of fixed and movable pulleys. Educational ToolThis product serves as an ideal educational toys tool that helps students understand the principles of physics in a fun and interactive way. Wide ApplicationGreat for home, school or lab use. Also ideal Birthday and Christmas gift for kids, children in middle school, can enjoy DIY experiments fun while learning basic physical science knowledge. Specification: Material: PP, Metal Size Chart: Pulleys: 11cm/4.33inch, 8cm/3.15inchBase: 17cm/6.69inchHeight: 34.5cm/13.58inchDynamometer: 20cm/7.87inch Package Includes: 1 Fixed and Movable Pulley Physics Experiment Set