Use for T-REX 550L/550X
●550EFL V2 Main Rotor Holder x 2
●MR148ZZ Bearing(Φ8xΦ14x4mm) x 4
●Socket Collar Screw(M4x25mm) x 2
●M4 Nut x 2
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●550EFL V2 Main Rotor Holder x 2
●MR148ZZ Bearing(Φ8xΦ14x4mm) x 4
●Socket Collar Screw(M4x25mm) x 2
●M4 Nut x 2