• Blue light blocking lenses and UV protection: Protect your eyes from blue light and improve your sleep quality. The blue filters in the lens prevent glare, fatigue, headaches, and dry eyes. • Spring hinges: The frame features flexible hinges that adapt to the size of the head, providing comfortable use and extending the lifespan of the glasses. • Timeless style: Retro design that adds a classic touch to any outfit. The semicircular color combines with metallic details, while the narrow temples and wide nose bridge offer firmness and definition. • Versatile use: Transparent polycarbonate lenses with no color difference, ideal for daily use at home, office, reading, computer games, and mobile devices. Suitable for both men and women.