Designed for distance viewing. Squeeze the outside casing and the monocular expands open. Squeeze again and it retracts back into its protective case. An additional feature includes the ability to use it in reverse so that it acts as a field expander, which will prove ideal for those with restricted visual fields.
Lens Size: 16 mm
Case Material: Protected in a small, light plastic casing
Mount: Rubber exterior at grip prevents slipping
Lens Material: Achromatic glass with multi-coating
Dimensions: Only 48 x 25 x 38 mm
Focal Range: 10 ft - infinity
Visual Field: 13 Degrees