Use for T-REX 450 Plus/Sport V2.
Specifications: Washout control arm × 2 Mixing arm Collar × 2(Φ2.1xΦ3.4x3mm) Bearing MR52ZZ × 4(Φ2xΦ5x2.5mm) Washer × 4(Φ2xΦ3.6x0.2mm) Socket collar screw × 2(M2x12mm) Linkage ball A(M2x2.5) × 4(Φ4.75x7.18mm) Weight:5g