The P-2200-30 is a Magnifier Loupe 10x from metal chromed.
Folding triplet 10x magnifier. Lens aperture 0.75 inch (19.3mm), lens dia. 0.82 inch (21mm), length open 2.26 inch ( 58mm), thickness 0.80 inch (20.5mm), focal length 1" (25mm). Supplied complete with plastic storage box.