The single-slot pulley model assembly gear set is a must-have for anyone interested in mechanical systems. This 50-piece kit provides all the components needed to build working models that illustrate how pulleys and gears function. It's an excellent learning tool for teachers and students, as well as a fun and engaging project for DIY enthusiasts who enjoy exploring the mechanics of motion and force. Features -Color:Orange -Material:Plastic -Size:0.60X0.60X0.60cm/0.24X0.24X0.24in -Workmanship: meticulous attention to detail in the manufacturing process ensures a durable product for diverse applications -Exact gear design: the precise design of the gears ensures smooth and highefficiency transmission, ideal for learning and mechanical uses -Versatile use: this product is ideal for learning accessories, model assembly, mechanical experiments, and other scenarios -Simple installation: the straightforward assembly process makes it easy and quick to install, suitable for users of all skill levels -learning support: designed to meet the needs of large scale learning experiments, making it a valuable addition to any learning toolkit Package list: pulleys