Montblanc MB0457O Optical Frame is a rectangular, full-rim eyewear piece from Montblanc’s Snowcap line, designed for everyday prescription use. The acetate frame ships with demo lenses and the original case for immediate wear or lens replacement. Key attributes: Black | Acetate | Demo lenses fitted | Includes original case and accessories | Rectangular frame | Full rim | Snowcap line detailing | Made in Italy | Dimensions & fit: Eye 54 mm | Bridge 19 mm | Temple 145 mm | Eye 57 mm | Bridge 19 mm | Temple 150 mm | Medium (Eye 54) | Large (Eye 57) | Composition & care: Acetate