The SPIRIG portable microscopes are designed and manufactured as a compact assembly of a lens case, containing the microscope itself, with a battery compartment and a light source. Two models of the SPIRIG portable microscope are available: SPIRIG 30X and SPIRIG 100X. Powered by two AA-size alkaline batteries, the SPIRIG 30X and 100X microscopes provide their own light source to illuminate whatever requires very close examination. The microscope itself weighs 100 grams and its size measures 140 mm long, 45 mm wide, and 20 mm deep. The SPIRIG 100X microscope also comes with its own stand and object holder clips.