Anna Karin Karlsson Crystal Nest Optical - Triangle is a limited-edition optical frame that pairs a sculptural triangular silhouette with hand-set Swarovski crystals for striking prescription eyewear. Key attributes: Yellow | Gold | Titanium | Lightweight frame | Prescription-compatible frame | Authenticity card with individual numbering | Triangle silhouette | Hand-set Swarovski crystals | Gold finish available | Dimensions & fit: 55 - 18 - 145 mm | Composition & care: Titanium | Swarovski crystals | Clean lenses with a microfiber cloth and lens cleaner; store in the supplied case when not in use.