These are 2.7V Vacuum Bulbs used with the Uni Otoscope and the Uni Bent Arm Illuminator. They come in a package of six. The bulbs feature a durable design that provides longevity and reliability.
Features
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Compatible with Riester products Otoscope uni® / speculight
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2.7 V Vacuum Bulbs For Uni Otoscope, [6/Pack]