Ray-Ban RX5441 Optical Frame combines a slim acetate build with everyday comfort and a clean, modern silhouette. Designed for prescription fitting, it comes with demo lenses and the original Ray-Ban case. Key attributes: Black | Acetate | Full-rim frame | Demo/trial lenses included | Includes original Ray-Ban case | Shiny finish | Modern classic silhouette | Dimensions & fit: Size 51 — Lens width: 51 mm; Bridge: 20 mm; Temple: 145 mm; Lens height: 41 mm | Size 53 — Lens width: 53 mm; Bridge: 20 mm; Temple: 145 mm; Lens height: 43 mm | | Composition & care: Acetate | Clean with a soft, dry cloth and store in the provided case. Avoid solvents and extreme heat.