Device major function & usage:
Adjust the wheel track by adjusting along connect rods.
1. Spring metal item is stronger to work with especially in the event that framework links are updating and down with stress.
2. The wheel track is modified by tuning on the tie rods to test different playing mode.
3. Each tie pole may be modified to 1.2mm reduced than initial and 3mm a lot longer than original
Use with exclusive ball stops.
