FOR YOUR PURCHASE IS A " Doug Hannon MotorGuide Competition Series Replacement Prop Propeller ". THIS PROP IS USED AND HAS SCRATCHES AND A FEW NICKS IN IT. THIS IS A USABLE PROP. THIS IS FOR THE PROP ONLY , IT WORKS WELL. 3 1/2 INCH HUB NO NUT OR PIN . I USED THE OLD ONE THAT WAS IN THE MOTOR.