Ray-Ban RB3721 Sunglasses combine a square metal frame with category 3 lenses for reliable sun protection and everyday wear. Key attributes: Black | Nero | Metal | Category 3 lenses | Solid tint lenses | Adjustable nose pads | Square frame | Metal temples | Dimensions & fit: Lens width 59 mm | Bridge 17 mm | Lens height 44.5 mm | Temple length 145 mm | Standard face coverage | Composition & care: Metal