Lenses are biconcave light weight plastic. Magnifiers with 8X, 6X and 5X power have a red guiding line. When using the alkaline-manganese batteries, they last 10 times longer than with conventional bulbs. Not having to change a bulb or batteries and the high quality magnification provided by the lenses, makes this new series by Schweizer excellent for elderly patients. Magnifiers can be purchased complete with lens and handle, just handle and several lenses, or additional lenses as a person s vision changes.
Lenses swivel horizontally for optimum visual placement.
Units come complete with 2 AA batteries and an extra bulb.