Montblanc Eyeglasses. Series number: MB0197O. Color code: 004. Shape: Square. Lens Width: 56 mm. Lens Bridge: 17 mm. Arm Length: 150 mm. Frame Material: Acetate. Frame Color: Black. Lenses Type: Demo. Rim Style: Full-Rim. UPC/EAN code: 889652364933. Montblanc Demo Square Mens Eyeglasses MB0197O 004 56. Manufacturers Packaging Included. Packaging Size And Color May Vary.