Product: Package: Instruction: Specification: ●Use for T-REX 450DFC. H45162 H45162QN ●450DFC Main shaft x 2●Socket Button Head Collar Screw x 2(M2x12mm)●M2 nut x 2●450PRO Main shaft spacer × 1(Φ5×Φ9×0.1mm)●450 Main shaft spacer × 1(Φ5×Φ9×0.2mm)●Weight:33g