Align T-REX 450 Sport Metal Tail Belt Use for T-REX 450 Sport. Metal plate(L) x1, Metal plate(R) x1, Aluminum bolt x1 Metal Drive pulley x1, Metal Pulley cover x1, Tail rotor shaft x1 Bearing MR83ZZ x2 (?3x?8x3mm), Vertical stabilizer mount x1 Socket button head screw x6 (M2x5mm), Socket button head screw x2 (M2x18mm)