Montblanc Rectangular Optical Frame in gray offers a refined rectangular silhouette and durable acetate construction, designed for everyday prescription wear and effortless style. Key attributes: Gray | Grigio | Acetate | Prescription-ready | Customizable with prescription lenses | Includes official case and cleaning cloth | Rectangular silhouette | Classic full-rim look | Dimensions & fit: Lens width: 57 mm | Bridge: 19 mm | Temple length: 150 mm | Large fit (XL) | Composition & care: Acetate | Rinse lenses under lukewarm water before cleaning. Use a soft, lint-free cloth and specific lens cleaner. Avoid dry rubbing. Store in the provided case when not in use; avoid contact with cosmetics and chemicals. Adjust temples with a small screwdriver if needed.