Upgrade your RC helicopter or drone with our high-precision BO-105 Scale RC Helicopter Kit. This comprehensive upgrade kit includes CNC machined main rotor blades and a rotor head assembly, designed to enhance the performance and durability of your professional drone or RC model. Key Features: High-Precision Components: Each part is CNC machined for exacting performance. Enhanced Durability and Performance: Improve flight stability and responsiveness. Compatible with Professional Drones and RC Models: Designed to fit seamlessly with models, ensuring a upgrade path. Material: Composite material Application: Vehicles and remote control toys Color: As Shown Package Contents: 4 x pitch rods 4 x screws 4 x main propeller blades 1 x rotor head Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.