Ray-ban RX6421 2997. These metal D-frame Ray-Bans feature a half-rim style with a contoured bridge, adjustable nose pads, and sculpted arms with acetate tips. The glasses are square in shape and have a full frame. Frame Width: 140mm, Frame Height: 41mm, Bar Width: 18mm. Manufacturer: Luxottica Fashion Brillen Vertriebs GmbH. Style: MODERN.