Convenient Solution To address the issue of individuals being unable to visit optometrists for vision testing, we have introduced a portable adjustable eyeglass solution. You can adjust it according to your vision needs and gain a clear understanding of your prescription, making it convenient for you to purchase suitable prescription glasses. Please note that this product is not intended to be a long-term substitute for regular prescription eyeglasses. Adjustable Design Concept Adjustable Focus Glasses are designed to adjust the focus through an optical principle, allowing adjustment from -6.0 to +3.0 diopters. You only need to turn the dial to adjust the lens power to suit your vision needs during use. Soft Material The adjustable glasses feature a frame made with TR material, which is soft and flexible with active memory retention. The comfortable design ensures the material will not irritate your skin during wear. Included Items Adjustable eyeglasses x1/2/3, storage bag x1/2/3. Applicable Users Adjustable reading glasses are suitable for individuals with presbyopia, nearsightedness, or farsightedness. They assist with daily close-up tasks, help reduce eye strain, and make a thoughtful choice for gifting to elders or friends.