Compact and sturdy pulley block that is easy to handle and store while delivering reliable performance for classroom demonstrations Material Metal construction designed for regular use in educational settings Educational value Ideal for teaching basic mechanics concepts; helps students understand force and motion through hands-on learning Versatility Includes a block with a fixed pulley, making it suitable for a variety of middle school physics experiments in the lab Key benefits - Simple, intuitive operation supports quick setup and clear demonstrations - Durable metal design stands up to frequent classroom use - Compact form saves bench space and facilitates easy storage Use scenarios - In-class demonstration of force direction: use the fixed pulley to show how pulling on a rope changes the direction of the applied force when lifting a load - Hands-on learning of motion and Newton's laws: attach different masses and observe how acceleration relates to force and mass - Integrating into physics experiments: pair with other basic lab components to illustrate pulley-based systems and the transmission of motion Care and maintenance Regularly clean after use and store in a dry place to preserve performance and longevity in a classroom setting