Metal precision folding magnifiersEschenbach's precision folding magnifiers feature: High quality silicate lenses Matt chromium plated brass body with eyelet Black painted metal lens frame Variants: Size Lens Magnification 118410 15 mm Achromatic 10 X 118420 17 mm Achromatic 20 X 11766 21 mm Aplanatic 6 X 11768 21 mm Aplanatic 8 X 117610 21 mm Aplanatic 10 X 117612 15 mm Aplanatic 12 X 1187 27 mm Biconvex 4 X + 6 X = 10 X Recommended use: Geology, occupational inspections, mining,