This used Fiber Optic Ring Illuminator has a 3" (75mm) ID ring, 40" bendable cable length, 1.08" (27mm) total ring height and 0.58" (15mm) ferrule. This microscope ring light guide is in good condition and light shows through the 360° ring. Uses a convenient thumb screw to mount onto your microscope to provide light on your specimin. Sold as pictured.
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Fiber Optic Ring Light Guide, 75mm Ring ID, 40 inch length, 15mm ferrule