Ray Ban Sunglasses. Series ARI. Series number - RB3758. Color code - 003/81. Shape - Square. Lens Width - 56 mm. Lens Bridge - 16 mm. Arm Length - 145 mm. 100% UV protection. Polarized. Frame Material - Metal. Frame Color - Silver. Lenses Type - Polarized Dark Grey. Rim Style - Full-Rim. UPC/EAN code - 8056262465028. Ray Ban ARI Polarized Dark Grey Square Unisex Sunglasses RB3758 003/81 56. All Ray Ban Eyewear may include Case/Pouch and may include a polishing cloth. Case size and color may vary.