High-performance, 3-piece reverse pitch spatula that can be used for both electric and glow engines. ● With high balance accuracy, pitch is appropriate, and high thrust even at low rotations. Made of fiberglass reinforced composite material with excellent strength and durability. Wing Type: NACA. Made in USA. Specifications: Propeller Diameter: 14 inches / 356 mm Pitch: 7 inches / 178 mm Shaft Diameter: 5/16 inches / 7.94 mm Hub Thickness: 11/16 inches / 17.5 mm Weight: 2.52 oz / 71.4 g Material: Fiberglass R Composite: Color: Black