Product: Package: Instruction: Specification: ●Use for T-REX 500. ●Metal main rotor housing x 1●Damper rubber-black 80° x 2(Φ5.9xΦ11.1x4mm)●Spacer x 2(Φ6.1xΦ10.5x1.5mm)●Pin x 2(Φ2x28mm)●Socket collar screw x 1(M2.5x19mm)●M2.5 nut x 1