Also known as the Golden Mean Caliper, this reusable acrylic tool provides precise measurements based on the Golden Ratio (Phi ratio 1:1.618) prior to microblading and all eyebrow treatments. Lightweight and easy to handle for accurate, symmetrical brow design.
Key Features
Acrylic construction — lightweight and reusable
Golden Ratio / Phi ratio 1:1.618 for mathematically precise brow mapping
Essential pre-treatment measurement tool
Suitable for microblading, PMU and all eyebrow treatments
