Montblanc MB0391OA Optical Frame blends geometric double-bridge styling with a metal construction for refined everyday wear. Part of Montblanc's Snowcap line, it focuses on recognizable detailing and comfortable all-day use. Key attributes: Black | Metal | Comfort-oriented temple design for improved wearability | Durable metal construction | Adjustable nose pads | Metal temples | Includes demo lenses / ready for prescription | Double bridge | Geometric frame shape | Full-rim construction | Snowcap emblem on temples | Dimensions & fit: Lens width: 51 mm | Bridge: 21 mm | Temple length: 145 mm | Lens height: 41 mm | Medium fit (51-21-145) | Composition & care: Metal | Clean lenses with a microfiber cloth and lukewarm water; avoid abrasive or solvent-based cleaners. Store in the supplied case when not in use. For adjustments or repairs, contact an authorized Montblanc retailer or service center.