RCinpower is a top manufacturer of motors for FPV drones and the GTS V30 0802 is no exception. Unibell bell for better durability, twin full bearings for longer life. The 0802 motor is suitable for small 1S drones and Tinywhoops with 30-40mm propellers. You will also be pleased to see the motor cables have a connector in the base and are soldered to a PCB on the bottom of the motor. This minimizes the chance of damage to the motor windings if the cable is dropped and possibly pulled out. Easily solder a new cable to the printed circuit board and keep flying. The shaft has a diameter of 1mm.