Here is a perfect example of hidden damage on a 2009 Toyota Prius that was lightly hit in the left front corner. After a visual inspection, the upper tie bar (the green point 6) appeared to be undamaged and everyone in the shop thought the lower rail was good. The Matrix Wand measured the XYZ point (orange point 8) to reveal that the DS lower rail had 16mm of sway and 4mm of sag. Unfortunately, the human eye, regardless of experience, cannot consistently find all damage. The Matrix Wand helps the body shop not only confirm damage, but reveal it too.