Metal Frame Plastic Lens Polarized UV Protection CoatingArm: 130mm UV400 Protection---100% lenses block harmful UVA, UVB and UVC rays, restore true color, eliminate reflected and scattered light, perfect eye protection.PREMIUM MATERIAL---The temples and frame are made of high quality metal, which is sturdy and durable with metal hinges. High quality TAC lenses are abrasion and scratch resistant.Stylish and Cool Design --- Retro Round Glasses. Maintaining its classic John Lennon style heritage while evolving to meet today's fashion demands. Retro fashion style makes you more attractive and eye-catching at outdoor events or parties.Versatile - Lightweight design for outdoor activities such as cycling, fishing, hiking, hiking, and more. Can also be used while driving to prevent glare from sunlight and glare.