Binocular Head Magnifier BM-115W 1pc

It can be used even while wearing glasses. You can work with both hands free. The light-blocking cover can block out excess light. When the inner lens is raised, the magnification becomes approximately 3.3x. Magnification: 2.3x/3.3x - Weight(g):114 Material: Lens: (Outer) White glass, (Inner) Plastic Size: Approx. 190 x 220 x 40mm Lens size: 39 x 103 mm Working distance: 2.3x/approx. 110-200mm, 3.3x/approx. 70-110mm *Working distance varies from person to person.