Ray Ban Sunglasses. Series Square Evolve. Color code: 914831. Shape: Square. Lens Width: 54 mm. Lens Bridge: 19 mm. Arm Length: 145 mm. 100% UV protection. Non-Polarized. Frame Material: Metal. Frame Color: Black. Lenses Type: Green. UPC/EAN code: 8056597054003. Ray Ban Square Evolve Green Sunglasses RB1971 914831 54.