1. Adjustable glasses: There's no need to spend a large sum on getting glasses from an optometrist. Adjustable glasses are a popular global eyewear option, enabling you to have clear vision without a prescription. You can customize 20/20 clear vision in just a few seconds, whether looking at close range, long range, extremely close range, medium range, or any distance. 2. Lightweight material: The glasses are made of PC material. They only weigh 27.2 grams, and you can wear them for hours without much awareness. 3. Durable: These adjustable - focus glasses are wear - resistant and anti - fall. The lenses are thin, made of resin high - definition material with an optimized thickness design. They are lightweight, ultra - thin, sturdy, scratch - resistant, waterproof, and oil - proof, offering reliable safety protection. 4. Suitable for various occasions: These reading glasses are suitable for all - day wear indoors and outdoors. They are suitable for people with presbyopia, especially for activities like reading books, newspapers, watching TV, playing games, traveling, attending parties, and fishing. They are a practical eyewear helper. 5. Glasses case: The glasses come with a nice glasses case. You can give them as a gift to your book - loving family members to protect their eyes and prevent eye fatigue.