Blue light filter lens with UV400 protection - Transparent lenses block blue rays and protect against harmful blue light. Designed to help prevent insomnia and support macular health, while reducing eye strain, glare, headaches, fatigue, and migraines from gaming, phone use, PCs, tablets, and TV screens. Comfortable to wear - Lightweight design with spring-hinged temple arms for a comfortable, pressure-free fit. The frame combines a retro square silhouette with a futuristic clear finish, offering a stylish look that fits many outfits and occasions. High quality materials - Polycarbonate lenses reduce chromatic aberrations and restore true colors. Lenses come with accurate prescription degrees. The temple is firm yet flexible, providing excellent toughness, light weight, and scratch resistance to ease close reading pressure. 4 pairs included - Four pairs of reading glasses for use in different places. Each set includes convenient accessories: eyeglass cloth, storage bags, cleaning cloth, and a screwdriver. A thoughtful gift option for family and friends. usage scenarios - At a desk for long computer work or gaming sessions to reduce eye strain during extended screen time. - For reading on phones or tablets, or for studying late at night, helping to minimize blue light exposure while you read. - While watching TV or commuting, providing comfortable, practical eye protection and clear vision on digital screens.