Ray Ban Sunglasses. Series Round Flat Lenses. Series number - RB3447N. Color code - 002/71. Size - 50. Shape - Round. Lens Width - 50 mm. Lens Height - 47 mm. Lens Bridge - 21 mm. Arm Length - 145 mm. 100% UV Protection. Non-Polarized. Frame Material - Metal. Frame Color - Black. Lenses Type - Grey Gradient. Rim Style - Full-Rim. UPC/EAN code - 8053672878271. Ray Ban Round Flat Lenses Grey Gradient Unisex Sunglasses RB3447N 002/71 50.All Ray Ban Eyewear may include Case/Pouch and may include a polishing cloth. Case size and color may vary.