Ray-Ban RB4184 - BLACK Frame CRYSTAL GREY GRADIENT Lenses 54mm Non-Polarized Composite/Plastic Frame. Imported Synthetic lens Non-Polarized 100% UV protective coating Lens height: 45.6 millimeters Bridge: 17 millimeters Arm: 145 millimeters 2" high Iconic Wayfarer sunglasses with square frame featuring non-polarized lenses and etched logoing at left lens