Montblanc MB0393ON Optical Frame pairs a classic squared silhouette with a full-rim injected-plastic build. Designed for everyday prescription wear, it balances clean lines with practical durability. Key attributes: Black | Silver | Transparent | Injected plastic | Lightweight | Durable construction | Compatible with prescription lenses | Can accommodate single-vision and progressive lenses | Squared silhouette | Full-rim frame | Dimensions & fit: Lens width: 51 mm | Bridge: 21 mm | Temple length: 145 mm | Composition & care: Injected plastic