Swarovski SK2004 Eyeglasses combine a polished acetate frame with crystal-embellished temples for a refined, everyday look. Designed for prescription use, they add a subtle touch of glamour to regular wear. Key attributes: Black | Acetate | UV protection | Scratch resistant | Anti-reflective coating available | Blue-violet light filtering available | Compatible with prescription lenses | Demo lenses included (replaceable) | Available in multiple sizes | Round frame | Polished finish | Crystal temple detail | Dimensions & fit: Lens width: 54 mm | Other lens width: 52 mm | Bridge: 18 mm | Temple length: 135 mm | Lens height: 45.5 mm | Available sizes: 52/18/135, 54/18/135 | Composition & care: Acetate | Wipe clean with a soft, dry cloth. Avoid abrasive cleaners and high heat.