Description: 81Pieces of gear can match each other, all combined into gears, these gears are suitable for shaft Including pindle gear, Crown gear, Fan shape Gear, Worm gear, Belt pulley DIY science and small production, product design, mechanical Technology model Material: Plastic 100% brand new and durable Size Chart: Packing: 15x10x3cm / 5.91x3.94x1.18inch Package Includes: 81 Pieces DIY Model Toys Wheel Gears
