We have created this ULTRA-THIN mapping string to help cut down on your brow mapping time. This string will give you the exact and precise lines you will need to create symmetrical brows and lips. You can try it and for some reason you don't like, return it with no hassle! Brow Mapping Time Saver You can get the most exact and flawless lines with this ultra thin and highly pigmented string! Used by Brow Artists all over the world Simple, easy clean up, and easy to use are some of the reasons brow artists are using our string. Try it and you will be happy you did!