Plastic Toothed Wheels 1.8mm Hex Hole Gears 26T/28T/30T/36T Module 0.5 Toy Robot. 【Features】: 1.8mm internal hexagonal hole gear, 0.5 modulus, with 4 types of 26, 28, 30, and 36 teeth. The hexagonal hole gear is equipped with a hexagonal shaft, and the installation of the hexagonal hole gear is labor-saving and does not slip after installation.
