Ray Ban Sunglasses. Series number: RB2180. Color code: 710/73. Size: 49. Shape: Round. Lens Width: 49 mm. Lens Bridge: 21 mm. Arm Length: 145 mm. 100% UV protection. Non-Polarized. Frame Material: Acetate. Frame Color: Tortoise. Lenses Type: Brown Classic B-15. UPC/EAN code: 8053672358612. Ray Ban Round Tortoise Sunglasses.