High-definition lens reading glasses: This 30X magnifying glass features a double layer of high-quality optical glass lenses for scratch resistance and exceptional clarity. The 10 cm diameter lens provides a wide field of view. Enjoy high-resolution, distortion-free images. The perfect magnification helps seniors and the visually impaired read easily and clearly. 18 LED lights and 3 dimming modes: These lighted reading glasses for seniors feature 18 built-in energy-saving LED lights, designed to let you read easily even in dark conditions. Choose from 3 lighting modes – cool light, soft light, and mixed light – which can be manually switched under different light intensities to better protect your eyes and reduce eye strain. User-friendly design: The non-slip handle is made of environmentally friendly ABS plastic for a comfortable grip. The switch is conveniently located where your thumb rests. Simply insert 3 AAA batteries to power on. Use the switch on the magnifying glass to change the light mode. Note: Insert batteries with the correct polarity. Batteries not included. Perfect magnifying glass and gift for seniors and children: It's an ideal gift and reading aid for seniors and the visually impaired. Our portable rectangular magnifying glass is perfect for mobile phones, newspapers, magazines, maps, daily papers, cookbooks, maps, crafts, weaving, sewing, embroidery, engraving, jewelry, inspection, repair, other tasks, and hobbies requiring a certain degree of precision. Package contents: 1x 30X reading glass, 1x cleaning cloth, 1x user manual. Lens inner diameter: 80 mm / 3.14 inches, lens outer diameter: 100 mm / 3.94 inches, length: 205 mm / 8.07 inches.