Ray Ban Foldable Round RB3517 LO879 Gunmetal Frame Dark Grey Lens 51mmRay Ban Round Folding RB 3517 Gunmetal Frame Dark Grey Lens 51mm Step into retro sophistication with the Ray Ban Round Folding RB 3517 sunglasses. These iconic unisex metal sunglasses pay homage to the 1960s counter culture look, featuring round crystal lenses and a distinctive shape. Equipped with a curved brow bar and adjustable nose pads, these sunglasses ensure a comfortable fit. The foldable design includes six concealed hinges, allowing for easy