HVM-4 Premium Binocular Headband Magnifier Visor, meticulously crafted to meet your exacting needs. With a magnification power of 3.5x and a 4" focal length, this magnifier is specially designed for exceptionally close and detailed work. For tasks requiring a longer working distance, we offer models with 2.5x, 2x, or 1.5x magnification options. The fully adjustable headband ensures a perfect fit for any size, effortlessly accommodating various users. Additionally, the visor can be adjusted up to +/- 60 degrees, making it easy to flip up and out of the line of sight when not in use. The HVM-4 premium boasts an aluminum alloy headband pivot mechanism and scratch-resistant glass prismatic lenses, ensuring durability and longevity, even in industrial environments. Its lightweight and impact-resistant visor shell further enhance its suitability for demanding applications. With its 3.5x glass prismatic lens providing a close working distance of 4", this magnifier offers hands-free magnification for repetitive tasks, facilitating a clear and magnified view. It's worth noting that 3.5x is the highest magnification suitable for binocular (both eyes) magnified viewing, as anything beyond this may result in a focal length too close for comfortable use with both eyes. This versatile magnifier can be worn over eyeglasses and many safety glasses for added convenience and safety. Additional lens magnifications are available for purchase, offering further flexibility and customization for your specific needs. Our standard-size lenses are also compatible with many other headband magnifiers, including OptiVISOR® Brand.