Ray Ban Sunglasses. Series number: RB4374. Color code: 6600M2. Shape: Square. Lens Width: 56 mm. Lens Bridge: 19 mm. Arm Length: 145 mm. 100% UV protection. Polarized. Frame Material: Plastic. Frame Color: Brown On Grey. Lenses Type: Polarized Brown Gradient. Rim Style: Full-Rim. UPC/EAN code: 8056597626941. Ray Ban Polarized Brown Gradient Square Unisex Sunglasses RB4374 6600M2 56.<br/><br/>All Ray Ban Eyewear may include Case/Pouch and may include a polishing cloth. Case size and color may vary.