DescriptionPrecise, straight lines are of priority when creating symmetrical eyebrows. This eyebrow ruler will mark out symmetrical brows on any shape, will help you to define the correct angles and draw perfect lines when planning out your threading, tattooing or when filling in your brows with pencil.Features-Color:Black-Material:Stainless steel-Size:15.40X6.10X0.90cm/6.05X2.40X0.35in - With this caliper, it can be more accurate for those who are in the beginning stages of permanent makeup eyebrows and lips.- After being stable, you can use it to measure eyebrow and drawing line for eyebrow.- Easy to locate the shape of the eyebrows, effectively reducing the time for eyebrow design.- With this ruler, you can make your eyebrows more natural and symmetrical.- Resist to wear and corrosion, it can help trim your eyebrows. It can bring convenience for your tattoos salon.