Suitable for internal inspection of cylinder bores, engine components and other machinery/industrial applications. Flexible 600mm shaft can be bent to shape to fit through small apertures and around obstacles. Subject illumination is provided by two LEDs which are controlled by a three-position switch, giving low output, full output and Off. LEDs are powered by 4 x AA batteries (supplied). Adjustable eyepiece allows user to tailor optics to suit their vision. Supplied in carry-case.