Feature: 1. 1. Make the pattern embroiderable, never need to tell us that the position of the eyebrow peak is about two thirds. 2. 2. With it, let our golden ratio be more perfectly presented on everyone's face. 3. 3. Using high-quality materials, durable, lightweight, non-toxic and safe. 4. 4. Can help make eyebrow tattoos more accurate and easier. Contains high-end box packaging, can be used repeatedly without deformation and unevenness. After use, the product can be stored in the box to prevent the product from scratching. 5. 5. Beginners can use it to quickly draw the perfect eyebrow contour! The master can use it to make the perfect professional technique rise to a higher level! Specification: Product Name: Golden Ratio Brow Ruler Product size: 16cmx4cmx0.08cm/6.29inchx1.57x0.03inch (Approx.) Duration of use: permanent Audience: For tattoo artist Product material: Magnesium metal (mirror stainless steel) Commodity net weight: 21 grams Package List: Ruler * 1