1:1.618 Mean Ratio Calipers Three Point Positioning Balance Caliper for Eyebrow Makeup Tattoos Art Work Design caliper for eyebrows Features: Premium Golden Mean Calipers are curved for accurate measurements. Fit for Biology, Art Math Students, Artists, Tattoo, Designers, Bowl Makers and Architects. Measures the Golden Mean, also known as The Golden (phi) Ratio 1 : 1.618 . This caliper are popular for measuring eyebrow dimensions. It gives more precision to those who are in the initial stages of permanent face makeup. It is extensively used in Microblading and other beauty practices. Made from stainless steel w satin finish. It is greatly designed and durable. The action is smooth and it will last a long time, will fit your needs perfectly. It also comes with a nice case that protects it from damage. Designed Golden Mean Calipers- Suitable for biology art students, makeup artists, designers, artists, dentists and architects. Golden Ratio Eyebrow Ruler is portable and easy to carry with your cosmetic bag or purse. Specification: Material:Metal Size?18x18x3cm 7.08x7.08x1.18in Package Includes: 1 Pcs Golden Mean Calipers note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Premium Golden Mean Calipers are curved for accurate measurements. Fit for Biology, Art Math Students, Artists, Tattoo, Designers, Bowl Makers and Architects. Measures the Golden Mean, also known as The Golden (phi) Ratio 1 : 1.618 . Made from stainless steel w satin finish. It is greatly designed and durable. The action is smooth and it will last a long time, will fit your needs perfectly. It also comes with a nice case that protects it from damage. Golden Ratio Eyebrow Ruler is portable and easy to carry with your cosmetic bag or purse. Designed Golden Mean Calipers- Suitable for biology art students, makeup artists, designers, artists, dentists and architects. This caliper are popular for measuring eyebrow dimensions. It gives more precision to those who are in the initial stages of permanent face makeup. It is extensively used in Microblading and other beauty practices.