12" Brass Ruler- 12" brass ruler - inches on one side, millimeters on the
other. Can be used to check the medial/lateral balance of the foot.
24" Folding Brass Ruler- Redesigned and less expensive, the FootPro™ Folding Brass Ruler is marked in inches only for easier visibility. It also features one edge marked 0 in the center and out 12” to each end.