Ray-Ban RB4171 Erika Sunglasses combine a modern oversized silhouette with functional polarized lenses for everyday wear. These Ray-Ban Erika frames suit both casual and travel use, offering reliable eye protection and a signature style. Key attributes: Black | Nero | Acetate | Polarized lenses | 100% UV protection | Compatible with prescription lenses | Includes protective case | Round oversized lenses | Key bridge | Full-rim frame | Metal temples | Dimensions & fit: Lens width: 54 mm | Bridge width: 18 mm | Temple length: 145 mm | Lens height: 46 mm | Size 54 (medium fit) | Composition & care: Frame: Acetate (plastic) | Temples: Metal | Lenses: Polycarbonate | Wipe lenses with a microfiber cloth; avoid abrasive cleaners and solvents; store in the protective case when not in use.