Ray Ban Sunglasses. Color code: 71073. Size: 56. Shape: Round. Lens Width: 56 mm. Lens Bridge: 18 mm. Arm Length: 145 mm. 100% UV protection. Non-Polarized. Frame Material: Nylon. Frame Color: Tortoise. Lenses Type: Brown Classic B-15. UPC/EAN code: 8053672169355. Ray Ban Brown Classic B-15 Round Men's Sunglasses RB4387 71073 56.