This technique includes : Metal Screw Shaft M4*2.5*11 - 4pcs Product major function & usage:
Relate with front CVD and back drive shaft with tires decrease the area and nearer towards wheel, expand the wheelbase by widening the width of hex. Fairly easy to possess in touch and play with different colors available, raise the safety the vehicle level of hex: 6mm (1mm thicker than original)