Michael Kors Windham 4151U 3950 glasses combine a timeless cat-eye silhouette with subtle stud detailing for polished everyday eyewear. Designed for prescription compatibility, they balance style with practical wear. Key attributes: Black | Acetate | Prescription-ready | Blue light filter option | Includes demo lenses (replaceable by optician) | Comes with original Michael Kors case | Cat-eye silhouette | Stud detail on temples (Astor-inspired) | Shiny finish | Dimensions & fit: Caliber (lens width): 51 mm, 53 mm | Bridge: 16 mm | Temple length: 140 mm | Lens height: 40 mm (size 51) | 42 mm (size 53) | Composition & care: Acetate | Clean lenses with a microfiber cloth and lens cleaner. Rinse frame with mild soap and water and dry with a soft cloth. Store in the supplied case and avoid high heat or abrasive cleaners.