Bausch & Lomb Folding Pocket Magnifier 81-23-64 4x-9x Magnification
Bausch & Lomb Folding Pocket Magnifier 81-23-64 offers 3 different powers with a durable plastic swing away case that protects and serves as a handle. Focal Distance=2.5" to 1.1", Diopters 16D to 36D, Lens Diameter 23.0mm. 4x to 9x Magnification Power.