Please read description carefully.
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).