Measuring tool: this eyebrow mapper shaped like a bow will mark out symmetrical brows on any shape will help you to define the correct angles and draw perfect lines when planning out your threading or when filling in your brows with pencil. Practical eyebrow ruler: when you place the eyebrow caliper on your nose the three point of eyebrows and nose can determine an straight lines then get the completely symmetrical eyebrow refer to the scales. Eyebrow shaping tool: high durability and flexibility measuring the length shape and position of the eyebrows. Premium eyebrow corrector: whether you are a professional or a home user this eyebrow drawing tool is an essential tool of makeup. Eyebrow horizontal ruler: adjustable size allows it to measure various kinds of eyebrows.