●Use for T-REX 500.

Specification:
●Linkage ball A(M2x3.5) x 4(Φ4.75x8.18mm)
●Linkage ball B(M2x3) x 2(Φ4.75x9.77mm)
●Linkage ball D(M3x3.5) x 2(Φ4.75x17.5mm)