Ray-Ban RX5440 Optical Frame pairs a classic rectangular acetate silhouette with everyday prescription functionality, designed for reliable daily wear. Key attributes: Blue | Blu | Acetate | Rectangular frame | Gloss finish | Dimensions & fit: Calibre: 53 mm, 55 mm | Bridge: 18 mm | Temple: 145 mm | Height: 36 mm, 37 mm | Composition & care: Acetate | Clean lenses with a microfiber cloth and mild lens cleaner. Store in the protective case when not in use.