HVML-2.5 Replacement Lens for Binocular Headband Magnifiers, featuring prismatic glass and providing a magnification of 2.5x with an 8" focal length/working distance. These replacement lenses are compatible with our HVM-3 and HVM-4 models and are also suitable for various other headband magnifiers, including OptiVISOR® Brand. Replacing your magnifier lens is hassle-free with the HVML-2.5. Simply push out the mounting pins or lens screws, install the new lens plate, and push in the mounting pins/or lens screws to securely lock in the new lens. Upgrade your binocular headband magnifier with the HVML-2.5 Replacement Lens to ensure clear and precise magnification for your tasks and projects.