MASTER AIRSCREW 10 X 5 SCIMITAR S2 SERIESFeatures a scimitar-shaped blade with swept tips and under-cambered blades. Provide great speed, thrust and noise suppression. Perfect for high performance models. Made of Glass Fiber Reinforced Composite. Available in sizes 6" to 16". Propeller diameter 10" / 254mm Propeller pitch 5" / 127mm Hub thickness 7/16" / 11.1mm Shaft diameter 1/4" - 5/16" / 6.35mm - 7.94mm * Propeller Weight 0.71oz / 20.1g Direction of rotation Normal / Tractor Material Glass Fiber R Composite Color Black