Michael Kors Saguaro MK4159U is a square, full-rim acetate frame designed for everyday prescription wear. It pairs a structured silhouette with a polished finish for versatile, defined styling. Key attributes: Black | Acetate | Suitable for prescription lenses | Compatible with lens replacement | Prescription-ready | Includes original Michael Kors case | Demo lenses require replacement by an optician | Square frame | Full-rim design | Shiny finish | Saguaro collection | Dimensions & fit: Lens width: 57 mm | Bridge: 16 mm | Temple: 145 mm | Height: 43 mm | Composition & care: Acetate | Wipe lenses with a microfiber cloth and mild lens cleaner. Store in the supplied protective case. Have lenses fitted or replaced by a qualified optician.