Flexi Lens Magnifier on Mini-Clip - This handy magnifier features a high quality 3.5 inch diameter main lens. The main lens has a magnification of 2.25x (5-diopter). There is a .75 inch diameter lens inset into the main lens; this inset has 4x (12-diopter) magnification. The lens is rimless, which gives you a comfortable and uninterrupted view. The lens is attached by a flexible gooseneck arm to a handy and sturdy clip. If you need a magnifier but you do not want the bulk of a magnifier and light combo, then you will love this lightweight and versatile lens!