The Carson PO-55 is a compact pop-up pocket magnifier with 5x magnification and LED lights that can be easily turned on and off. The universal magnifier fits effortlessly in your bag, breast pocket, and even in your wallet. This makes the LED magnifier a useful accessory in any conceivable situation. The lens measures 40 mm in length and is made of aspheric acrylic. Aspheric lenses provide clear, sharp images with minimal distortion at the edges. The pocket magnifier can be used for any imaginable application. Whether you are observing coins or diamonds, examining insects, or simply wanting to read a book in low light, this compact LED magnifier is always handy. If you want to use the magnifier's lighting, you will need to insert three AAA batteries (not included) into the compartment. By moving the body upward, you can use the magnifier with the light. By moving the body downward, you can safely hide the magnifier behind the plastic casing.