Dior PrismeO B1I Glasses combine a refined cat-eye silhouette with lightweight acetate construction for everyday prescription or fashion wear. Key attributes: Black | Acetate | Prescription-ready | Lightweight acetate frame | Acetate temple tips | Cat-eye silhouette | Thin acetate rims | Subtle gradient finish | Dimensions & fit: Lens width: 52 mm | Bridge: 19 mm | Temple length: 140 mm | Medium fit (52 mm lens width) | Composition & care: Acetate | Clean lenses with a microfiber cloth and lens cleaner. Store in a protective case and avoid exposure to high heat or abrasive cleaners.