* Use for T-REX 550E
* T-REX metal main rotor holder features high precise bearing structure and high rigid CNC processes aluminum alloy material, and therefore this refitting component is absolutely helpful for the accuracy of flying movement control and the stable of the flight
* 600NFL Metal main rotor holder x 2
* Socket collar screw x 2(M4x25mm)
* 550EFL Linkage ball A(M3.5x4.5) x 2(5x29.77mm)
* M4 nut x 2
* Bearing MR148ZZ x 4(8x14x4mm)
* Feathering Shaft Bearing Spacer x 4(10x13.8x0.4mm)