Eyebrow Mapping String for Microblading Brow Map Line Premium Pre-Inked Measuring Safe and durable, hypoallergenic - In order to ensure that the thread is as safe, durable, hypoallergenic and thin as possible, we only use the highest quality polyester fiber that has been professionally injected with makeup grade white bamboo charcoal pigment, so that you can create smooth, crisp and elegant lines without any trouble Save time - This thread is compatible with any browser mapping tool. Each roll has 12 meters of pre-marked line, which can serve more than 20 customers. Use the built-in wire cutting machine to cut any size you need, save your time and let you focus on your project. Enjoy high-quality top quality - use this specially designed micro-coating line to draw the facial contour in a completely accurate way, ensure the symmetry of eyebrows, and produce perfect lines to help improve the efficiency of multiple beauty procedures without causing confusion, staining or drying Multi-purpose - the mapping string is pre-marked with hypoallergenic cosmetics grade pigment. Compatible with any eyebrow mapping tool. It helps to improve the accuracy of many beauty procedures, such as areola, scalp, eyes, eyeliner pens. It is very suitable for busy salons, beauty schools, tattooists and any other places that need clean and original lines. In addition, it is applicable to almost all types of eyebrow mapping tools