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Horizontal tag / range finder

Horizontal tag
Horizontal tag

It is hard to hang a picture on the wall straightly.
Somebody coaches the location, and you should hold a nail in the mouth and carry a hammer and a measuring tape at the waist.
However, we can balance it without difficulty if a nail is set a tag informing the height.
The nail with tag indicates the distance between the nail and the ground.
If you drive nail with the same number at both sides, it would be balanced.


daegu university

daegu university
Gyeongbuk, South Korea


daegu university

daegu university
daegu, South Korea