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Do not base your order on the picture presented.
These specially designed playing cards make it easy to measure near visual acuity in young children, while teaching concepts of similar/different, big/small, bigger/smaller.
The four packs contain 16 cards each with symbols of varying sizes: 16M and 10M, 6.3M and 4M, 2.5M and 1.6M, and 1M and 0.63M.
Includes training cards and instructions.
The paper cards measure 1.6" x 2.75" (4 cm x 7 cm).
Medex SKU: GL-252500