Ray ban sunglasses. Series chris. Series number: rb4187. Shape: square. Lens width: 54 mm. Lens height: 44 mm. Lens bridge: 18 mm. Arm length: 145 mm. 100% uv protection. Non-polarized. Frame material: nylon. Lenses type: grey gradient. Rim style: full-rim. Ray ban chris grey gradient square unisex sunglasses rb4187 622/8g 54. Manufacturers packaging included. Packaging size and color may vary.