Instruction: ●Use for T-REX 500. Specification: ●CCPM metal swashplate x 1 ●Long linkage ball(M2.5x3) x 1(Φ4.75x24.59mm) ●500 Linkage ball B(M2.5x3) x 6(Φ4.75x9.77mm) ●500 Linkage ball A(M2.5x3) x 2(Φ4.75x8.18mm) ●Bearing(MR6705ZZ) x 1(Φ25xΦ32x4mm)