Golden Mean Calipers : Small 4.5in (11cm)
Golden Mean Calipers are used by artists, architects, designers, and cosmetic surgeons.The Golden Mean has appeared in art and architecture for over 2000 years.It is seen everywhere in nature - in the spirals of shells, sunflowers, the human body, and in geometric shapes. The name of this ratio is Phi... and its value is 1.61803399