For eyebrow use: With our double scale plastic rulers, it's convenient to measure and locate your eyebrows and to the eyebrows, eyeliner and lip are symmetrically positioned, so you can easily determine the position, length and size of them. and portable: The property of this tattoo eyebrow ruler makes it possible to be carried around, when you're out for business trips, vacation and visit, you can put it in your small suitcase, backpack, the toolkit and so on without causing too much burden on you.Note: Pointed and small items included, please keep from children.Name: Mini CaliperModel Number:Eyebrow RulerType: eyebrow toolsType: for Student OfficeType:Vernier Calipercolor:As shownMaterial:plastic+metalPackage Contents:5 x CaliperOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.