Ray Ban Sunglasses. Series number - RB4428F. Color code - 664051. Shape - Square. Lens Width - 56 mm. Lens Bridge - 21 mm. Arm Length - 145 mm. 100% UV protection. Non-Polarized. Frame Material - Propionate. Frame Color - Polished Trasparent Light Brown. Lenses Type - Brown Clear Gradient. Rim Style - Full-Rim. UPC/EAN code - 8056597957304. Ray Ban Brown Clear Gradient Square Unisex Sunglasses RB4428F 664051 56. Manufacturer's Packaging Included. Packaging Size And Color May Vary.