Esky Lama Alloy Metal Rotor Head Upgrade (Not Assembled) Alloy Metal Rotor Head Upgrade Kit For Esky Lama V3, V4, Robins 22 , Comanche , Dauphin Helicopter (Not Assembled) Specification: XYS-EK5-0206:Metal Center hub and shaft set XYS-EK5-0207:Metal Center holder set XYS-EK5-0209:Metal Swashplate set XYS-EK5-0210:Metal Grip set