Direct from the manufacturer: 142AM-0.8H6 Electric Dancing Educational Toy Accessories Suitable for Educational Toy Plastic, with the same tooth count but different inner holes, there are usually several different height products, with a wide variety. Welcome to call for consultation. Phone: 13825807139. Our factory mainly produces gear products: straight gears, single and double gear sets, helical gears, worm gears, crown gears, and various sizes of gear products with different moduli. Applications: widely used in various toys, such as remote control toy cars, transformable toy cars, electric toy cars, bubble guns, and various educational and educational products.