1. Metal frames, plastic lenses with a polarizing and UV-blocking coating. - Temple length: 130mm. It has a UV400 protection function, which means 100% of the lenses can block harmful UVA, UVB, and UVC rays, restore true colors, eliminate reflected and scattered light, and provide perfect protection for your eyes. 2. High - quality materials: - The temples and frames are made of high - quality metal and are equipped with metal hinges, making them sturdy and durable. The high - quality TAC lenses are wear - resistant and scratch - resistant. 3. Stylish and cool design: - These are vintage round glasses. While retaining the traditions of the classic John Lennon style, they keep up with the times to meet today's fashion needs. The retro and fashionable style makes you more attractive and eye - catching during outdoor activities or at parties. 4. Wide range of uses: - The lightweight design makes them suitable for outdoor activities such as cycling, fishing, and hiking. They can also be used while driving to prevent sun glare.