500 Metal Tail Belt Unit H50073Instruction:Use for T-REX 500.Specification:500 Metal plate(L) x 1500 Metal plate(R) x 1500 Metal Tail Belt Unit x 1(Φ16xΦ18x40.8mm)500 Control arm mounting bolt x 1(14.6x5x10mm)Aluminum bolt x 1(Φ4x17.3mm)500 Drive pulley(19T) x 1500 Pulley cover x 2500 Tail rotor shaft x 1(Φ4x56.8mm)Bearing 684ZZ x 2(Φ4xΦ9x4mm)Socket screw x 1(M2.5x10mm)Socket button head screw x 7(M2.5x5mm)Socket button head screw x 2(M2.5x6mm)