Montblanc Squared Optical Frame MB0393ON 003 offers a lightweight, refined design ideal for everyday eyewear. The frame pairs an injected front with flat metal temples for a comfortable, structured fit. Key attributes: Brown | Havana | Plastic | Metal | Lightweight construction | Durable injected front | Compatible with prescription lenses | Injected temple tips for comfort | Squared frame | Flat metal temples | Signature Montblanc emblem on temples | Shiny Havana finish | Dimensions & fit: Lens width: 51 mm | Bridge: 21 mm | Temple length: 145 mm | Frame width: 130 mm | Frame height: 43 mm | Size: 51-21-145 | Size M (130 mm) | Composition & care: Plastic | Metal | Clean lenses with a microfiber cloth and lens cleaner. Store in the included protective case when not in use.