General Tools 537 6x Double Lens Folding Pocket MagnifierOur convenient Pocket Magnifiers provide you with the inspection power you need while you"re working on the move. Our unique design features two powerful lenses which can be used independently for standard applications, or collectively for superior magnification power. In addition, each lens features a pivot point on its base and can be turned into the protective case for storage when not in use. The ground and polished optical glass lenses each have a power rating of 3x, for a combined magnifying power of 6x.General Tools 537 6x Double Lens Folding Pocket Magnifier Features: Two powerful 3x magnifying lenses Combined 6x magnification power Lenses are 1-1/4" in diameter Black, molded plastic case Lens pivots into case for storage Great for working in the field, stores easily in a pocket Used by machinist, inspectors, jewelers and hobbyists Lens is made of ground and polished optical glass 1.6" focal length. Two powerful magnifying lenses Combined 6x magnification power Great for working in the field Ideal for machinist, inspectors, jewelers and hobbyists Molded plastic case