Specification: Tail rotor holder x 2 Bearing MR95ZZ x 2(Φ5xΦ9x3mm) Tail rotor hub x 1(Φ9x36.4mm) Thrust bearing x 2(Φ3xΦ8x3.5mm) Washer x 2(Φ2xΦ6x0.6mm) Socket screw x 2(M2x6mm) M3 nut x 2 M4 set screw x 1(M4x3mm) Socket collar screw x 2(M3x16mm)