Beautiful proportions that don't require mathematical calculations.
Some works just feel perfectly balanced: the height and width are well-matched, the base is as stable as a rock, and the lid seems to be naturally placed there. This sense of balance is not accidental, nor is it a matter of speculation. It stems from proportion. Nowadays, you can easily find it in just a few seconds.

The golden ratio caliper directly presents one of the most powerful design principles in the maker's toolbox to you. Just set the two outer legs to any size, and the two inner legs will automatically be divided in the ratio of 1:1.618 - this is the golden ratio. No calculator, no formula, simple and convenient.

The golden ratio is a ubiquitous harmonious proportional relationship, which can be seen everywhere from the spiral of a shell to the facade of the Parthenon. It accurately depicts the balance, harmony, and unity between two sizes. The geometric structure of this caliper itself incorporates this proportional relationship: no matter how wide you open it, the ratio between the two segments always remains constant.

This means that you can instantly determine where the widest part of the vessel should be located, how the base size should match the rim, where the dividing line between the box lid and the box body should be located, and how the width of the bowl of the rimmed plate should be grasped. With just one tool and one action, the proportions will be clear at a glance.

- It is 163 mm long and 54 mm wide when closed.
- Measurement range: 26 mm to 300 mm