Reliable Material: These LED pocket magnifiers feature optical-grade scratch-resistant acrylic lenses, with the magnifier and LED protected by a durable ABS plastic frame. The smooth finish and ergonomic design make them comfortable to hold and built to last. Thoughtful Design: These magnifier cards come with pre-installed batteries and offer 3X and 6X distortion-free magnification. Equipped with a bright, low-power LED light, they perform well in various lighting conditions and are not dependent on ambient light. Convenient to Carry: Designed in a credit card shape, these compact and lightweight magnifiers are easy to carry in wallets, shirt pockets, or pants pockets, allowing for convenient use anytime and anywhere. Wide Range of Applications: These illuminated credit card magnifiers are ideal for reading books, newspapers, contracts, magazines, jewelry inspection, experiments, surveys, art appreciation, and antique examination.