ACCURATE MEASUREMENT: The plastic caliper has a large enough range, high accuracy and clear markings. The measuring range is 0-150mm (0-6inch), which can be used for precise measurement. It can display "inch" and "cm", which is very convenient to use. THE BEST PARTNER FOR EYEBROWS: The eyebrow ruler measuring tool is very suitable for use before micro-blades and permanent makeup to ensure that the eyebrows, eyeliner and lips are symmetrical and accurate. Suitable for permanent eyebrow lines and other precise makeup. HIGH-QUALITY MATERIALS: made of high-quality plastics, light weight. It is quiet enough to use, convenient and comfortable. It is an ultra-precise and easy-to-operate measurement tool. The perfect tool for eyebrow painters. WIDELY APPLICABLE: the vernier micrometer is suitable for tattoos, handicrafts, jewelry and other precise measurements. It can use two sets of jaws and probes to measure inside, outside, depth and step length. IDEAL: Ideal for professionals and beginners, environmentally friendly materials, high durability. Professionals use professional equipment, and the talents of beginners are not limited by equipment.