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 reduce the area and nearer towards wheel, expand the wheelbase by widening the width of hex. Easier than you think to own connected and play with various colors available, improve the security the automobile amount of hex: 6mm (1mm thicker than original)