Montblanc MB0444O Optical Frame pairs a refined metal rectangular silhouette with Meisterstück-inspired temples for polished everyday prescription wear. Key attributes: Silver | Metal | Integrated flex hinge | Demo lenses fitted (replaceable with prescription lenses) | Rectangular shape | Full rim | Meisterstück-inspired temple detailing | Long tip ends (solid or havana options) | Dimensions & fit: Lens width: 54 mm | Bridge: 20 mm | Temple length: 145 mm | Lens height: 37 mm | Composition & care: Metal | Clean lenses with a microfiber cloth and mild soap; avoid abrasive cleaners and solvents; store in the supplied case when not in use.