Fibonacci Gauge - Golden Mean Caliper: A Golden Ratio Measurement Tool used to find the golden ratio of any object.
This item is 3D printed in PETG plastic and is held together with stainless steel screws.
Unlike other available designs, this gauge folds into a very small form factor. Ideal for storage, placing it in a pocket or pencil holder when not in use.
10-Inch. 19-1/2 inches wide when fully extended.
Calipers come in black or white.