Ray Ban Sunglasses. Series Erika. Series number - RB4171. Color code - 65138G. Shape - Round. Lens Width - 54 mm. Lens Bridge - 18 mm. Arm Length - 145 mm. 100% UV protection. Frame Material - Plastic. Frame Color - Transparent Grey. Lenses Type - Light Grey Gradient Dark Grey. Rim Style - Full-Rim. UPC/EAN code - 8056597369374. Ray Ban Erika Light Grey Gradient Dark Grey Round Ladies Sunglasses RB4171 65138G 54.All Ray Ban Eyewear may include Case/Pouch and may include a polishing cloth. Case size and color may vary.