The Liu Jo LJ2843 Optical Frame pairs a bio-injected squared frame with a modified-rectangle silhouette for a structured, everyday optical look. It is prescription-ready and sized 53-17-140 for standard eyewear fitting. Key attributes: Black | Bio-injected plastic | Prescription-ready | Modified rectangle frame | Squared silhouette | Structured front | Dimensions & fit: Lens width: 53 mm | Bridge width: 17 mm | Temple length: 140 mm | Frame size: 53-17-140 | Composition & care: Frame: Bio-injected plastic | Lenses: Plastic | Clean lenses with a microfiber cloth and lens cleaner. Store in a protective case. Avoid abrasive cleaners and extreme heat.