YS PARK HEAD FIT RULER RA45-360

Understanding the basic geometry of the head is paramount to understanding the basic rules of cutting. The YS PARK Head Fit Rulers allow educators and students to do just this. The RA45-360 is the longest out of 3 sizes in the 45゜head fit ruler trio. It can measure hair length up to 36cm at 45゜angle & 22.5゜angle from any point of the scalp. The large size is particularly appealing for educators as it is highly visible.