ADJUSTABLE GLASSESNever spend expensive trips to an optometrist again Adjustable glasses are the world's newest glasses that give you clear vision without a prescription You can customize the clear 20/20 vision in seconds to see near, far, very close, intermediate, any distance. HIGH STRENGTH AND LIGHTWEIGHT MATERIALWe use high quality PC material to produce our glasses, our glasses only weigh 27.2 grams, you can wear them for hours and forget about them. DURABLEThe adjustable focal length glasses are anti-wear, anti-drop, lens light, resin HD, optimized thickness design, light weight, ultra-thin, sturdy, scratch-resistant, waterproof, and oil-proof, providing you with more reliable safety protection. SUITABLE FOR MANY OCCASIONSReading glasses are suitable for indoor and outdoor wear around the clock, suitable for people with presbyopia problems, especially when reading books, newspapers, watching TV, playing games, traveling, parties, fishing, this is a thoughtful and practical Practical helper for glasses.