Bring your DIY electronics and mechanical projects to life with this 93-piece fan propeller and plastic gear set. The set includes a wide variety of gears, racks, pulleys, belts, worm gears, and fan propellers in multiple sizes and types, perfect for hands-on learning, science experiments, and educational projects. Made from high-quality plastic, these components are durable, lightweight, and easy to assemble, making them ideal for robotics, mechanical models, and DIY engineering projects. This comprehensive set provides everything students and hobbyists need to explore gear mechanics and motion principles.