Reliable Material: These LED pocket magnifiers feature optical-quality scratch-resistant acrylic lenses, and the magnifier and LED lens are protected by a reliable and sturdy ABS plastic frame. They are easy to hold with fine workmanship and a neat appearance that can serve you for a long time. Thoughtful Design: These magnifying cards come with pre-installed batteries and provide clear, distortion-free 3X-6X magnification. These magnifiers are equipped with dim bright lights, which are not limited by ambient light and can be applied in various lighting conditions. Convenient to Carry: These small mini-lup cards are designed in the shape of a credit card, compact and lightweight, easy to store in your wallets, shirt, and pants pockets, etc., allowing you to take them out anytime or anywhere. Wide Range of Applications: These credit card magnifiers with lights are suitable for reading books, magazines, contracts, jewelry, experiments, investigations, painting appreciation, and antique appreciation.