RC fixedwing airplane propellers designed as direct replacements for electric model aircraft. Durable, lowmass plastic construction and twoblade design make these props easy to balance and suitable for general flying and testing different size and pitch combinations. Key benefits Compatibility and choice: Includes two common sizes and pitches to help you find the match for your motor and airframe. Easy balancing: Low rotating mass and consistent molding make trimming and balancing quick, reducing vibration and improving smooth operation. Lightweight durable material: Plastic blades reduce rotating mass for responsive throttle response and longer service life. Performance tuning: Multiple washer sizes allow precise hub fit and pitch selection to optimize thrust and motor efficiency, helping improve conversion rates. Specifications Package content: 4 pcs x Fixedwing Airplane Propeller Vane quantity: 2 Styles available: 7x5 and 9x6 inch Propeller diameter: 7 inch and 9 inch Height: 9 mm and 11.9 mm Propeller washers size: 5.7/4.8/2.9/4.8 mm (7x5), 3.7/4.8/5.8/2.8 mm (9x6) Material: plastic Practical applications damaged props on electric trainer and sport model airplanes for reliable, everyday flying. Try different size and pitch combinations during setup or motor testing to match lift and speed requirements. Use as spare or practice props for flight schools, club flying, or hobby workshops where easy balancing and interchangeability matter. Notes on fit and use Confirm hub and shaft dimensions against the included washer sizes for correct mounting. Balance each prop before first flight to minimize vibration and ensure consistent performance.