The Ray-Ban RX 6494 Optical Frame is a square metal optical frame designed for everyday prescription wear, with a matte finish and adjustable nosepads for secure, all-day comfort. Key attributes: Black | Metal | Adjustable nosepads | Square frame | Full rim | D-frame silhouette | Matte finish | Dimensions & fit: Lens width: 54 mm, 56 mm | Bridge: 18 mm | Temple: 145 mm | Lens height: 41 mm, 42 mm | Composition & care: Metal | Clean with a soft cloth and mild detergent; avoid solvents (e.g., alcohol, acetone) and abrasive cleaners.