A small, easy-to-handle pocket magnifier from National Geographic. The 35 x 40 mm lens gives 3x magnification for reading fine print, checking seeds, insects, stamps or splinters. Pop the magnifier up from its case and the built-in LED switches on automatically, lighting what you are looking at. When pushed closed, the lens is protected inside the black plastic body, so it can go in a pocket or bag. It runs on two CR1130 button batteries.