Beautiful CNC precision machined clear-coat natural finish aluminum Predator upgrade from the stock plastic rotor hub. Improved cyclic/collective performance and main blade tracking in all flight positions over the stock plastic rotor head. Although the stock Predator rotor head performs well, with this upgrade, you will see and feel a very measurable improvement in cyclic/collective performance. Properly installed, this upgrade can easily deliver a 15% or more improvement in cyclic/collective response and main blade tracking in all flight positions simply because the center mount stress point of your main blades will be mounted on a more rigid platform. Engraved Predator lettering adds a finishing touch to your helicopter.