Screwless & Metalless : Sports bifocal sunglasses feature a sustainable screwless and metalless design that allows the arms to open fully, ensuring flexibility and long-lasting performance. Clear Bifocal Vision: Enjoy seamless focus between near and far vision. These bifocal lenses offer clear sight, so you can switch between distances without the hassle of extra glasses. All-Day Comfort: Designed with ergonomic precision, bifocal sunshine eyeglasses provide a custom fit, ensuring optimal comfort and stability for all-day wear without compromise. Durable Spring Hinges: Reinforced, spring-loaded hinges provide extra durability and flexibility, making them ideal for daily use and built to last. 4 Pair bifocal sunglasses: A perfect combination of classic frames and trendy colors, this 4 pack offers versatile styles that suit any occasion, from casual to formal, providing excellent value and variety.