Ray-Ban RB5510 Optical Frame pairs a classic cat-eye silhouette with lightweight acetate construction, designed for comfortable everyday optical wear. Key attributes: Black | Acetate | Lightweight | All-day comfort | Includes original case | Compatible with prescription lenses | Demo lenses included | Cat-eye shape | Full-rim silhouette | Retro 60s-inspired wider front | Dimensions & fit: Frame width: 135 mm | Lens width: 52 mm | Bridge width: 20 mm | Lens height: 42 mm | Temple length: 145 mm | Regular fit | Composition & care: Acetate | Clean with a microfiber cloth and lens-safe cleaner; store in the original case.