Optokinetic Drum

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Tests for nystagmus when rotated at 8-10 rpm. Drums are available in three sizes: 10", 8" or 4" high by 6" diameter (25.4, 20.32, or 10.16 cm x 15.2 cm).
Lightweight drum of professional quality with ball bearings for effortless spin mechanism. Standard black and white striped drum for use 24" to 30" (61 cm to 76 cm) from patient.
10" Drum . . . . . . . . . . . . . . . . . . . . .547500
8" Drum . . . . . . . . . . . . . . . . . . . . . .576300
4" Drum . . . . . . . . . . . . . . . . . . . . . .616700