"Sargent000022"

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Item Number: (470023-564)

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Same test used by optometrists to determine visual acuity.

Item Number: (470111-318)

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This sturdy chart tests for astigmatism, myopia, or hyperopia.

Item Number: (470148-650)

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Both versions of these economy tuning fork sets come with a mallet designed for one hard and one soft end for use with all frequencies of forks.

Item Number: (470002-452)

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Ishihara Color Blindness Test Charts help students evaluate congenital, complete, and incomplete color blindness.

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