OptiVISOR Headband Magnifier is a precision binocular headband magnifier that permits unrestricted user efficiency while reducing eye strain. Leaves both hands free and allows three-dimensional vision. Adjustable pivots allow the visor to be tilted out of the way. Adjustable to fit all head sizes and fabricated from a special blend of lightweight material. Tough, durable, high-impact visor with a genuine leather band padded with orthopedic felt for added comfort. Can be worn over prescription or safety eyeglasses. Available in six lens options.DA-2: 20" focal length • 1.5x magnification DA-3: 14" focal length • 1.75x magnification DA-4: 10" focal length • 2.0x magnification DA-5: 8" focal length • 2.5x magnification DA-7: 6" focal length • 2.75x magnification DA-10: 4" focal length • 3.5x magnification
