Michael Kors Kingston MK4150U 3950 frames combine lightweight acetate construction with a timeless rectangle silhouette. Ideal for everyday prescription wear, they offer a balanced fit and modern classic styling. Key attributes: Black | Amber Tortoise | Acetate | Lightweight frame | Durable construction | Prescription-ready (demo lenses installed) | Includes case and cleaning cloth | Rectangle shape | Full rim | Modern classic design | Dimensions & fit: Lens width: 52 mm (also available in 54 mm) | Bridge width: 17 mm | Temple length: 140 mm | Lens height: 39 mm | Composition & care: Acetate