Montblanc Optical Frame is a rectangular acetate frame from the Nib family, featuring the brand's nib-icon detailing for a refined everyday look. Designed for prescription compatibility, it balances classic styling with subtle branded accents. Key attributes: Black | Acetate | Full-rim frame | Compatible with prescription lenses | Includes original Montblanc case | Rectangular shape | Nib icon on endpieces | Full acetate construction | Dimensions & fit: 54 - 17 - 145 mm (lens width - bridge - temple) | 56 - 17 - 145 mm (lens width - bridge - temple) | Composition & care: Acetate