Stainless steel frame with acrylic housing and 2 aspheric lenses: rectangular, 1 1/8 x 1 1/2" (30 x 37 mm) with 2.5x magnification; round, 1/2" (15 mm) diameter with 10x magnification.  3 lighting functions:  powerful 3-LED flash light (sideways), 1-LED research light (down), simple 295nm long-wave UV light (down).  Also includes pull-out mini ball-point pen and leatherette case.  3 LR927 batteries included.

Dimension: 1 1/2 x 3 1/2 x 1/4" (38 x 91 x 8 mm)