InLei Brow Ruler is a professional measuring tool to help measure the proportions of the face and eyebrows during different eyebrow treatments.

Measuring the brows is an essential part of mapping them - we want to look at our work after the treatment and be proud of the final results, just as we want our clients to see their brows and feel gorgeous! 

By mapping the brows with precision, you are ensuring straight lines and symmetry between the brows, creating a neat and beautiful finish.