Ray-Ban Silver Round Metal Flash Sunglasses. In excellent condition. The Ray-Ban ® RB3447 sunglasses are totally retro. This look has been worn by legendary musicians and inspired by the 1960s counter-culture when this style first originated.The Ray-Ban unisex metal, iconic sunglasses are known for their defined round crystal lenses and distinct shape. A curved brow bar, adjustable nose pads, and thin metal temples with plastic end tips rest comfortably behind the ears.In addition to the classic and gradient lenses, the Round Metal is now available with striking silver, copper and yellow flash lenses, to ensure you never go unnoticed.