Manufacturer: Bausch & Lomb
Special Bausch & Lomb Magna-Page® 2X Magnifier when you need to see the whole page. Size is 8.25" x 10.75" and is excellent for reading fine print in books, maps and documents.
Specially designed fresnel lenses are molded (rather than hot stamped) of optical grade acrylic to provide optimum image quality. Hold it approximately 4" from surface for best results.