Ray-Ban Photochromic Sunglasses Erika Metal Ray-Ban RB3539 002/Q4 ERIKA METAL Black sunglasses from the RB 3539 model, 54mm lens size, with case. These lenses have a photochromic function. The lens color changes in places with strong ultraviolet light. - Model: RB 3539 - Color: 002/Q4 (Black) - Lens Size: 54mm - Bridge Width: 19mm - Temple Length: 145mm - Accessories: Case Used only a few times, so there are no visible scratches and the condition is good, but please refrain from purchasing if you are sensitive to minor imperfections, as they are not new.