The "Confort" hand magnifier from French manufacturer LHP represents the very best in quality.   A large bi-aspheric lens set into a transparent frame, with a well balanced and comfortable rubber covered handle.

Bi-aspeheric lenses can be used either side and when used at the correct distance from the page to eye give an undistorted image almost to the very edge of the lens. 

Lens type: Bi-aspheric
Magnification:  3.5x / +10dpt
Lens size:  80mm