For optimum magnification, it is best to hold the magnifier between 3 to 5 inches from the object in view. A wider view is better Wide horizontal magnifying lens measuring 2.3" (W) X 4" (L); ideal for reading books, newspapers, magazines, documents, and even maps with minimal hand movement. Perfect for Home, Office, or School Portable and tough enough to take with you wherever you go. Illuminate While You Magnify Equipped with three energy-efficient LED lights built inside the handle.