This 50-piece single-slot pulley model assembly gear set is ideal for anyone interested in exploring the world of mechanics. By assembling the gears and pulleys, users can create models that demonstrate how these components work together to transmit motion. This kit is ideal for science projects, classroom activities, or as a hobby for those who and experimenting with mechanical systems. Features -Color:Orange -Material:Plastic -Size:0.60X0.60X0.60cm/0.24X0.24X0.24in - workmanship: each component is crafted with fine attention to detail, ensuring a durable product for diverse applications -Precise gear engineering: the gears are engineered with precision to ensure smooth and efficient , ideal for learning and mechanical projects -Versatile applications: suitable for learning accessories, this product can be used in model assembly, mechanical experiments, and more -Easy to assemble: the simple assembly method makes it easy and quick to install, catering to users of all skill levels -Supports large scale experiments: designed to meet the demands of large scale learning experiments, making it an essential tool for schools and institutions Package list: pulleys