This fresnel magnifier model whose external frame protects people as well as making it more resistant and robust, is ideal to support us in reading a newspaper, a magazine or a large book since it covers a large field of view and allows magnification by 2x.
Likewise, if the user needs to see more detail at any given time, they can use the 4x bifocal lens that is included in the lower left.
The dimensions of the lens are: 170 x 120 mm