Product test book, is a simple and for accurate way to discover congenital for color blindness and red-green for color blindness, each of which has two , complete and incomplete.
-Includes four special test plates for determining for type and degree of for color deficiency. - Using the characteristics in red-green for color blindness, blue and yellow appear significantly brighter than red and green.
- for color plates are attached to a specially designed album- for type book for easy operation.
-The graphics seen by people with for color vision deficiency must be different from those of people with normal for color name: for color difference test book
Material: paper
Size: 19*14.8*4cm
for color: as shown
Quantity: 38 plates
Package Contents:
1* for color Difference Test Book
for Note:
1: Please allow 1-2 cm error due to manual measurement, please make sure you for do not mind before ordering.
2: Due to the difference between different monitors, the for image may not reflect the actual for color of the item
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