Ray Ban Sunglasses. Series RB4147. Series number: RB4147. Color code: 710/57. Size: 60. Shape: Square. Lens Width: 60 mm. Lens Bridge: 15 mm. Arm Length: 145 mm. 100% UV protection. Polarized. Frame Material: Nylon. Frame Color: Tortoise. Lenses Type: Polarized Brown Classic B-15. UPC/EAN code: 805289391623. Ray Ban RB4147 Polarized Brown Classic B-15 Sunglasses RB4147 710/57 60.