JAZRIDER made Alloy steel principal Rotor Head Assembly Set For Align Trex T-rex 450 AE SE V2 elements Brand [] (JR-HAG-TX450-013K) Trex 450 V2 component NameAlloy steel principal Rotor Head Asembly SetSuitable for Align Helicopter - T-Rex 450 SE V2 Jazrider No.JR-HAG-TX450-013K