Diagnostic medical led pen light with pocket clip including 5 cm-ruler on the side of the penlight.
To activate the sealed concentric light beam just click the spring button, click again to switch the light off.
This is a long life and reusable penlight, replace the batteries when necessary.
The pre-focused pinpoint lens is designed to illuminate eye pupils, ears and throat.
Included in the package are replaceable AAA batteries, Penlight size: 13.5cm (5.3")Length x 1.3cm(0.51")diameter, LED color: white and pen color: green + yellow