1, external dimensions / cm: 37 × 31 × (11 ~ 21), the main use of the main use of high-quality steel, etc. 2、Adjustment range of angle of straightening plate: 5 gears 15 °, 25 °, 30 °, 35 °, 40 °. 3、Adjustment range of height of straightening plate/cm: 11～21 4、Rated load: 2000N 5、Used to correct and prevent foot drop, foot inversion, foot outversion and other deformities.