Ray Ban Sunglasses. Series number - RB4306. Color code - 710/83. Size - 54. Lens Width - 54 mm. Lens Bridge - 18 mm. Arm Length - 145 mm. 100% UV protection. Polarized. Frame Material - Propionate. Frame Color - Light Tortoise; Tortoise. Lenses Type - Polarized Brown Classic B-15. UPC/EAN code - 8056597073011. Ray Ban Polarized Brown Classic B-15 Hexagonal Sunglasses RB4306 710/8354.