Self-tightening propeller blades engineered for Yuneec Typhoon G, Q500, Q500+, and Q500 4K quadcopters. This complete set includes both A and B propeller pairs for a full replacement of all four rotors. The self-tightening design prevents loosening during flight, ensuring reliable performance and safety. Perfect as a backup set, direct replacement, or performance upgrade. Installation is straightforward—no special tools required. Keep your drone operating at peak efficiency with these durable, precision-balanced blades that maintain consistent flight dynamics and stability.