Adjustable Glasses are designed to let you easily fine-tune the focus. With a simple turn of a knob, you can adjust the lenses until you achieve the perfect focal length. These glasses feature a twist mechanism that adjusts the lens position, providing clear, customized vision for your specific needs. They are made from materials that are both lightweight and durable, ensuring comfort and no extra pressure on the nose bridge. These glasses are versatile and ideal for a broad range of users. They are excellent for correcting presbyopia, enhancing reading clarity, and are also perfect for children conducting scientific experiments, fostering a sense of curiosity and a desire to learn. The glasses are designed for multiple uses, making them perfect for reading, working on computers, or participating in outdoor activities. Features: Adjustable Focus: Turn a knob to slide lenses and adjust focus. Simple twist mechanism for clear vision. Lightweight Material: Durable yet light for comfortable wear. Universal Design: Suitable for everyone, from readers to young experimenters. Versatile Use: Great for reading, computer work, and outdoor activities. Specification: Item Type: Portable Neck Fan Material: ABS Charging Voltage: 5V Charging Current: 1000mA Battery: 2000mAh Size: 20.526cm / 8.0710.23in Package Included: 2 x Dial Adjustable Glasses