3X 5X 10X 20X Eye Loupe Jewelry Magnifier with Glass Len for Watch Repair G9323C
(3X 5X 10X 20X Eye Loupe Magnifier for Watch Jewelry Repair. The len is made of glass. 2) For scope of vision, the less magnification, the wider vision you can see. e.g. the 5X can see wider than that of 20X's in vision, 10X is in between.