Usage Tips:Extra Large 5.4 Inch Large Magnifier: Lens Material: Acrylic Lens Size: 5.4 Inch. Our acrylic lens is lighter and more shatter resistant than glass lens while providing the same level of clarity. the lens is big enough to provide the large viewing area without having your hands moving around all the time. A must-have for researchers, professionals, the elderly, and people with low vision, macular degeneration, and visual impairment. 3 Bright LEDs: Our reading magnifier features 3 LEDs at energy saving. Even at night or in the dark, user can enjoy excellent reading experience. Especially if you have presbyopia, amblyopia or macular degeneration, it will be a good choice for you to read the magazine or books. Ergonomic handle design: The handle of the Lighted magnifying glass is ergonomically designed to be comfortable to grip/hold by most hands, making it ideal for anyone who likes to read for long periods of time. Comes fully assembled and requires only 3 AA batteries (not included). Once the batteries are added, the magnifying glass with light is ready to use and is perfect for seniors or those who need an intuitive magnification system. Perfect gift for seniors & ; KIDS: This reading magnifier is the perfect gift for the elderly (Mom, Dad, Grandma, Grandpa) to read fine print. Not only can it bring a lot of fun for children to explore the great outdoors. but also can help the elderly people check small words, crafts, photos, read books, spapers, medicine instructions, collect coins and stamps, etc. Due to the elderly and certain eye problems, including macular degeneration, the inability to read fine print becomes a significant problem. especially printing information on a medicine bottle and daily socializing on mobile phones. LED light as an auxiliary light source is the difference between a magnifying glass and a traditional magnifying glass . Whether it is for reading or jewelry, our portable LED magnifier which has a built-in light can greatly improve the lack of light source during the process of using. You can read the smallest font quickly and easily while reducing eye strain.