Ishihara® Test Chart Book for Color Deficiency -14 Plate (Concised Edition) Book Disposable SpO2 Sensors each in two forms

each in two forms

Slips easily between cast edges and spreads up to 2"

#9 Regular Envelope 500 / PK

Salmonella and Listeria

54" - 54"L x 2"W

Ishihara® Test Chart Book for Color Deficiency -14 Plate (Concised Edition) Book Disposable SpO2 Sensors each in two formsAccepted by leading authorities as a simple and accurate method for discovering congenital 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 with red and green. Color plates encased in specially designed album