That includes :
Hex Adapter-6pcs
Stainless metal Screw Shaft M4x2.5x11.8-6pcs
Shims 5mm-6pcs
5mm Metal Washer-6pcs
Stainless metal Hex Socket Screw 11mm-6pcs
component location:
Hex adpaters
Product major function & usage:Connect front part CVD, back drive shaft with tires.
1. Made with top-notch steel for great durability, with good weighing effect (17g each).
2. Widen design raise the wheel track and reduce additional area.