Product overview These replacement propellers are designed for fixed wing RC airplanes and electric model aircraft. Twoblade plastic construction reduces rotating mass for improved motor output and longer service life, while the balanced design makes trimming quick and straightforward. Key benefits Simple replacement and upgrade for fixed wing RC models. Lightweight plastic blades reduce rotating mass for better motor efficiency and durability. Easy to balance, helping reduce vibration and improve flight smoothness. Multiple size and washer options let you match diameter and pitch to your motor and airframe. Specifications Package contents: 4 pcs fixedwing airplane propeller. Vane quantity: 2 per propeller. Styles: 6x4 inch and 12x6 inch. Propeller diameter: 6 inch or 12 inch. Height: 10, 6 inch. Propeller washer sizes included: 3 mm, 4 mm, 5 mm, 6 mm, 8 mm. Material: durable plastic. Compatibility and fit Intended for use on electric RC fixed wing airplanes. Select the correct diameter and pitch for your model and motor before ordering. Washers accommodate common shaft sizes for easy installation. Usage tips Confirm rotating diameter and pitch match your airplane and motor to ensure proper clearance and performance. Balance each propeller before installation to minimize vibration. Inspect the propellers regularly for chips or cracks and if damaged. Typical applications Replacing damaged or worn props on electric trainer and sport RC planes. Keeping a spare set for club flying and field maintenance. Trying different diameter and pitch combinations to optimize climb and cruise performance.