An indispensable aid for retouching work, model construction, engraving, assembly and repair. This extremely light head magnifier is provided with a Velcro strap, allowing infinite adjustment. Headaches are a thing of the past. Two magnification factors are possible over the entire field of view (1.8 and 3.7x), two other factors are also possible with the small auxiliary magnifier (2.3 and 4.8x). The diameter of the auxiliary magnifier is 30 millimetres.