Magnifying Aids - Your Low Vision Superstore! Eschenbach Headband Visor Magnifier 3.0X Powered Low Price Guarantee! Ratcheted hinge on lens cover can be raised or lowered as needed. Interchangeable lenses snap into high grade plastic housing. Headband has adjustable strap and foam lining for greater comfort and ease of fitting. Features: * Magnification: 3.0x * Diopter: 8D * Lens Type: Aspheric * Case: no * Case Material: no * Mount: no * Lens Material: PXM Plastic with Cera-Tec Coating * Miscellaneous: Fits Over Prescription Eyewear, Replacement Lens is Available (1645-3), Frame is Available Separately (1644-504) * Temples: no * Temple Length: no * Bridge: no * Bridge Size: no * Frame Size: no * Focal Range: 6.4" * Rx-able: no * Display: no Manufacturer: Eschenbach Origin: Germany Model: 164830 Shipping Weight: 1.1 lbs Manufactured by: Eschenbach