This set was designed for testing distance visual acuity in children and adults who have difficulty being tested with a visual acuity chart, the Crowded Symbol Book Test, or the Single Symbol Book Test. 4" x 5" (10 cm x 12.7 cm) to 5" x 5" (12.7 cm x 12.7 cm). 30 cards per set.
252700 Lea Symbol Single Presentation Flash Cards .......... $40.00
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