Ray Ban Sunglasses. Series number - RB4451. Color code - 601/B1. Shape - Irregular. Lens Width - 50 mm. Lens Bridge - 20 mm. Arm Length - 145 mm. 100% UV protection. Non-Polarized. Frame Material - Nylon. Frame Color - Polished Black. Lenses Type - Dark Grey. Rim Style - Full-Rim. UPC/EAN code - 8056262415603. Ray Ban Dark Grey Irregular Unisex Sunglasses RB4451 601/B1 50. Manufacturer's Packaging Included. Packaging Size And Color May Vary.