This is the APC 9x4.7 Slow Flyer Propeller. This slow flyer prop is not for use with gas engines, only electric motors.
Hub Diameter: 0.50 in.
Hub Thickness: 0.31 in.
Shaft Diameter: 1/4 in.
Product Weight: 0.32 oz.
This product was added to our catalog on July 17, 2009