SENJINGHUA 6PCS Optical Vernier Ruler Pupil Distance Meter Eye Ophthalmic Tool Calipers, for hospital, pharmaceutical or medical supplies
SENJINGHUA
Vernier interpupillary distance ruler: Measuring interpupillary distance ruler, non-slip handle, quality assurance Keep your eyes squarely ahead, and look at a still life about 20 meters away; if you are in a house, look at the distance, and do not move your eyes during the measurement. Do not measure in the mirror by yourself, please ask your family or friends to help measure. Measure several times and take the same value Please start the calculation from the "0" degree scale of the ruler, do not start the calculation from the edge of the ruler. It is a very good promotional item and perfect for hospital, pharmaceutical or medical supplies
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| shop | Price | Action |
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32,00 GBP | Go to shop |
