SF Mixing Arm H50024Instruction:Use for T-REX 500.Specification:SF mixing arm x 2Bearing MR63ZZ x 4(Φ3xΦ6x2.5mm)Collar x 2(Φ3xΦ4.5x1.mm)Washer x 4(Φ3xΦ4.8x0.3mm)Socket button head self tapping head screw x 2(T3x12mm)Linkage ball A(T2.6x4.5) x 4(Φ4.75x9.18mm)