Ray-Ban Erika Optical Frame brings a modern twist to a classic round silhouette. Lightweight propionate construction and a retro key bridge make it a comfortable, everyday choice for prescription wear. Key attributes: Beige | Propionate | Lightweight | Compatible with prescription lenses | Round shape | Retro key bridge | Full-rim frame | Dimensions & fit: Size: 51 - 18 | Lens width: 51 mm / 2.01 in | Bridge width: 18 mm / 0.71 in | Temple length: 44 mm / 1.73 in | One size only | Composition & care: Propionate | Nylon | Clean lenses with a microfiber cloth and mild lens cleaner; avoid abrasive cleaners. Store in protective case when not in use.