Gucci Sunglasses (GG 3540/S 54Z/DX 61) plastic frame plastic lens non-polarized Lens width: 61 millimeters Lens height: 55 millimeters Bridge: 10 millimeters Arm: 140 millimeters Reference: GG3540/S 54ZDX Model: Female Material: Acetate Colour: Grey Lens colour: Gradient grey