Self Propeller and Spinner together

The propeller diameter is about 17 cm. Don't forget to place the rotator inside the front and back parts of the device body. Then, use glue or screw to connect the front and back parts of the body. Insert the long ribbon gear into the body from the arrowed part until it reaches the end. Then, attach the propeller or spinning top to the rotator head, as desired. Quickly pull the ribbon gear outward. Please play the propeller in the open area, do not throw it towards anyone's face, it may cause injury. It is a harmful toy for young children, be careful. If you pull the propeller hard, it can rise up to 10 meters.