ISHIHARA Test Chart Books for Color Deficiency (10 Plate) promo-MAICO100 Keep kids healthy and help

Keep kids healthy and help stop the spread of germs

non-suicidal self-injury

Consisting of 1 demonstration plate and 9 test plates displaying circle

firm pressure for high frequencies

Bleach-free

ISHIHARA Test Chart Books for Color Deficiency (10 Plate) promo-MAICO100 Keep kids healthy and help(10 Plate) 4 symbols and 6 trails Accepted by leading authorities as a simple and accurate method for discovering congenital color blindness of two types: total color blindness and red green blindness, each in two forms, complete and incomplete. Includes four special plates for tests to determine the kind and degree of defect in color vision. Makes use of the peculiarity that in red green blindness, blue and yellow appear remarkably bright compared