Montblanc MB0388O Optical Frame combines a classic square silhouette with a lightweight acetate build. Designed for everyday wear, it delivers comfortable all-day use with refined Montblanc detailing. Key attributes: Black | Acetate | Lightweight frame | Rounded temples with flat tips for comfort | Logo detailing on temples | Square shape | Full-rim acetate construction | Shiny black finish | Smooth surfaces | Dimensions & fit: Lens width: 54 mm | Bridge: 18 mm | Temple length: 145 mm | Composition & care: Acetate | Wipe lenses and frame with a soft microfiber cloth; avoid contact with chemicals and abrasive cleaners; store in the supplied case and check screws periodically.