The pre-embedded mapping thread can help you create beautiful customized eyebrows for your customers, making the pre-drawing process faster and more convenient! More accurate than ever. For any beauty professional, must have How to use: 1. Pre-inked brow mapping string For micro-blade and PMU applications, there is no need to pre-ink. 2. This string is very thin and very saturated. Each box contains 10m of rope and will last 25-30 customers 3. It will greatly shorten the mapping time of your browser! 4. We created this mapping string to help you shorten the time spent on eyebrow mapping, which will show you the precise lines needed to create symmetrical eyebrows and lips. 5. Using this super thin and very thin line, you can get the most precise lines and strokes 6. Simple, easy to clean and easy to use are some of the reasons why eyebrow painters use our thongs. Try it, you will be very happy!