●Use for T-REX 250.

Specification:
●Tail rotor hub x 1
●M2 Set screw x 1
●Socket button head screw x 2(0#x5mm)
●Bearings 681ZZ x 2(Φ1.5xΦ4x2mm)
●Washer x 2(Φ1.5xΦ3.8x0.7mm)