4X magnification, 2.95-inch optical glass lens, Hard and scratch-resistant for high quality images without distortion. Portable handheld magnifying glass is small and easy to carry out. Comfortable ergonomic handles are suitable for children, adults, seniors, amateurs and professionals. Built-in 6 LED lights, use simple push button switch to turn on/off (excluding battery). Used to view fine details of books, newspapers, magazines, maps, electronics, miniatures, jewelry, medicine bottles, hobbies and crafts. 7 8/10'' L x 3 3/4'' W x 1 1/10'' H