UV Protection Coating coating Lens width: 62 millimeters Lens height: 55 millimeters Bridge: 17 millimeters Arm: 145 millimeters HD Polarized Lens High definition vision polarized lens filter and block sunlight reflection glares effectively and restore you a ultra-clear world with real color. UV400 protection coating keeps your eyes fully protected against harmful UV, UVA/UVB rays! A good choice for driving, fishing and outdoor activities Metal Frame with Antioxidant Plating ? High quality metal made frame with gloss antioxidant muti-layer plating , they are not just durable enough for long time using, but provides elegant looking , Spring Hinge & Silicon Nose Pads.It is suitable as high fashion accessory and daily wear all year round.