Montblanc Squared Optical Frame blends a bold squared silhouette with durable acetate construction. Designed for everyday prescription wear, it emphasizes clean lines and recognizable temple detailing. Key attributes: Black | Acetate | Prescription-ready | Full-rim frame | Squared silhouette | Temple emblem detailing | Wire-core detail visible through acetate | Dimensions & fit: Lens width 54 mm | Bridge 20 mm | Temple length 150 mm | Fit international | Composition & care: Acetate | Wipe lenses with a soft microfiber cloth; avoid abrasive cleaners and store in a protective case.