MASTER AIRSCREW 14 X 8 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 14" / 356mm Propeller pitch 8" / 203mm Hub thickness 9/16" / 14.3mm Shaft diameter 1/4" - 5/16" / 6.35mm - 7.94mm * Propeller Weight 1.99oz / 56.4g Direction of rotation Normal / Tractor Material Glass Fiber R Composite Color Black