Feature: 1. PRE INK: String is pre marked with hypoallergenic cosmetic grade pigment. Save yourself time and improbe eyebrow microblading efficiency 2. ENHANCE ACCURACY: Compatible with any brow mapping tool. The preinked brow mapping string helps enhance accuracy of microblading such as eyes, eyeliner. 3. 10M STRING LENGTH: Includes 10M of pre marked mapping thread, which positioned inside a sealed box. For eyebrow design, efficient, fast and easy to shape eyebrows. 4. EASY TO USE: Suitable for use on all face shapes, flexible and convenient to help you easily mark symmetrical eyebrows of any shape. 5. EXCELLENT MATERIAL: Made of polymer rot resistant silk thread, it is durable, disposable and safe for skin, which is easy to use and accurate marking. Specification: Item Type: Microblading String Material: Polymer rot resistant silk thread, ink Product Size: Approx. 7.5 x 4.5 x 1.7cm / 3 x 1.8 x 0.7inColor: Black. Package List: 1 x Microblading String (10M, Include Ink)