Packing Includes:Brass hex wheel hubs 3.0mm-4pcs1.5x5 Metal pin-4pcsOriginal Name / role No:AXI31610+AXI31609Part Location:Hex adaptersProduct major function & usage:Connect front side CVD, back drive shaft with wheels.Made with a decent quality metal for great durability, with good weighing effect (1g each).Suitable Model:AXIAL-1/24 AX24 XC-1 4WS CRAWLER BRUSHED RTR-AXI00003