Ray-Ban Square Reverse Sunglasses feature a distinctive reverse (concave) lens construction and a bold square silhouette, offering modern style with multiple lens options for everyday wear. Key attributes: Yellow | Gold | Metal | Gradient lens option | Polarized lens option | Adjustable nose pads | Available in two lens sizes (54 mm, 56 mm) | Square silhouette | Reverse (concave) lens design | Full-rim metal frame | Archival lens colorways | Dimensions & fit: 54-19-140 (lens width 54 mm, bridge 19 mm, temple 140 mm) | 56-19-140 (lens width 56 mm, bridge 19 mm, temple 140 mm) | Available in medium (54 mm) and large (56 mm) sizes | Composition & care: Frame: Metal | Lenses: Bio polyamide | Wipe lenses with a microfiber cloth. Avoid abrasive cleaners and harsh chemicals. Store in the protective case when not in use.