Description: Contains a variety of different types of gears, all of which can match each other The modulus is 0.5, and the inner holes are 1.9mm, 2.05 (2.0) mm, 2.4 (2.55) mm, 2.9 (3) mm, etc. It also contains hexagonal gears, racks, pulleys, belts, axles and many other diy accessories. These products are for toys gear pulley and other spare parts, suitable for DIY model technology production. It is indispensable for the robots, planes models, cars, boats, RC-airplane/helicopter repair, small production of science and technology. Size Chart: Packing size: 15*10*3cm / 5.90x3.93x1.18inch Package Includes: 106 pieces Plastic Gear Set Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!
