Swarovski SK2019 Optical Frame combines a round acetate silhouette with signature crystal temple detailing for a refined, dressy look suited to everyday wear and special occasions. Key attributes: Black | Nero | Acetate | Compatible with prescription lenses | Includes demo lenses | Comes with original case | Round silhouette | Full-rim acetate frame | Crystal embellishment on temples | Shiny finish | Dimensions & fit: Lens width: 50 mm | Lens width: 52 mm | Bridge: 18 mm | Temple length: 140 mm | Height: 43.0 mm | Height: 45.0 mm | High bridge | Recommended for heart, square and oval face shapes | Available in 50 mm and 52 mm lens widths | Composition & care: Acetate | Clean lenses with a microfiber cloth and eyewear cleaner; store in the supplied case; avoid heat and abrasive chemicals.