- Description
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Modification of Effron´s rectangles for testing of size perception.
Contains 10 rectangles in 2 colours and 5 sizes.
Includes instructions.
Good-Lite: 254600
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Modification of Effron´s rectangles for testing of size perception.
Contains 10 rectangles in 2 colours and 5 sizes.
Includes instructions.
Good-Lite: 254600