Description | Magnetic Farnsworth D15 kit. Magnets move the color disks. Protects disks from fingerprints. Keeps all the disks in one place. Clear glass insures accurate color perception. Makes color testing fun. | Farnsworth D15 test is used to separate medium and strong color defect vs normal. Farnsworth D15 come in plexiglas boxes which permit the patient to select the sequence of chips. Then the box is closed and the selections can be read thru the bottom |