●Use for T-REX 700 Nitro Pro / 700E. ●Must use with the following part: (HN7079) ●Bearing 683ZZ x 2(Φ3xΦ7x3mm) ●Tail rotor control arm x 1 ●Collar x 1(Φ3xΦ5.2x9.5mm) ●Washer x 2(Φ3xΦ4.8x0.3mm) ●Socket collar screw x 1(M3x20mm) ●M2 nut x 1 ●Linkage ball C(M2x4) x 1(Φ5x9mm)