3.5" Diameter Lens 3X (Primary) / 5X (Secondary) Aspheric Lens (Distortion Free) Ball Switch LED Light: Adjust the angle of the LED by swinging the joystick on the ball switch to direct light where you need it LED Light requires 2 AAA Batteries (Not Included) Dimensions: 1.25" L x 3.875" W x 9.5" H #MP76835