Zoom HD Monocular Starscope Monocular Telescope BAK4 w/Phone clip,tripod
Prism Type: BAK4 Focusing System: Eyepiece Focusing. - Selected from BAK4 prisms, with higher refractive index than ordinary glass, clearer imaging. Monocular Size: approx.150x50 mm. - HD large eyepiece design, 18MM eyepiece.