Features: *1. The glasses can be zoomed. *2. Instantly control the focus and be able to independently adjust the prescription and magnification of each eye. *3. Just turn the dial to adjust the focal length of the lens. *4.Light weight. *5. Easy to use. *6. Easy to carry. *7. Durable. *8. For reading and distance vision. *9. Used for computers, reading, watching TV, driving during the day or at night, placed on the desk or next to the workbench, and used as spare glasses. Specifications: Material: AP Frame + PC Lens Color: Black Frame Lens Diopter Range: -6.0 to +3.0 Diopter Frame Measurement: As shown in the picture Center Distance: 63mm Packing List: 1 * Adjustable Strength Lens Reading Glasses 1 * Storage Bag 1 * English User Manual Notes: 1. All pictures have been professionally corrected, but due to different ambient light and different display device settings, there may be some deviations in the pictures and items you see, please understand. 2. The data is measured manually and there may be some deviations, but it does not affect the use.