1、Safe Use: The marking line is safe to use, no ink is added as a pigment, no harm to the skin, and solves the trouble of asymmetry of the eyebrows. 2、Draw Symmetrical Eyebrows: Use before makeup and semi permanent eyebrow tattoos to draw symmetrical eyebrows easily, quickly and accurately. 3、Easy to Clean: The marking line can be cleaned by gently wiping with make up remover, which is easier to clean than ordinary markers. 4、With Blade: You can freely extract a suitable length of ink filled thread according to your needs. The thread box comes with a micro blade, so you don't need to cut with other tools. 5、Simple Use: The coil and ink are packed in a sealed bag, and the thread can be drawn without opening the wire box. It is simple and safe to use, and there is no need to worry about ink spilling. 6 x Mapping String Item Type: Mapping StringMaterial: String, liquidValid Period: 3 YearsQuantity: 6pcs/boxSingle Length: Approx.10m/ 32.8ftSingle Box Ink Capacity: 3mlPurpose: Positioning symmetrical eyebrow shape before makeup and semi permanent eyebrow tattoo