This knob-focusing pocket microscope features a 60 - 100x zoom with quality glass optics. The field of view is sharp from edge to edge, with good depth of field. Do not confuse it with your regular tabletop microscope; it is great for field and on-site inspection of mineral, metallurgical, or composite samples, biological specimens, or the leaf from your favorite tree!
Power source: two AAA batteries (included).
Dimensions: 4 1/4" x 2" x 3/4" (10.8 cm x 5.1 cm x 1.9 cm).