Montblanc Rectangle Optical Frame blends a classic rectangular silhouette with the brand's signature Nib detailing, designed for everyday prescription wear and polished style. Key attributes: Black | Acetate | Durable acetate construction | Can be fitted with prescription lenses | Includes demo lenses in retail packaging | Rectangular shape | Full rim frame | Metal Nib icon at endpieces | Dimensions & fit: Bridge width: 17 mm | Temple length: 145 mm | Composition & care: Acetate