Use for T-REX 600/600 Nitro. H60008-1-84 Metal SF mixing arm x 2 Socket button head screw x 2(M3x12mm) Linkage ball A(M3x4) x 2(F4.75x8.68mm) Linkage ball B(M3x3) x 2(F4.75x9.77mm) Bearing 683ZZ x 4(F3xF7x3mm) Collar x 2(F3xF4.9x1.5mm) Washer x 4(F3xF4.8x0.3mm