Ray Ban Sunglasses. Series Justin Classic. Series number: RB4165. Color code: 710/13. Size: 51. Shape: Rectangular. Lens Width: 51 mm. Lens Bridge: 16 mm. Arm Length: 145 mm. 100% UV protection. Non-Polarized. Frame Material: Nylon. Frame Color: Tortoise. Lenses Type: Brown Gradient. UPC/EAN code: 713132587102. Ray Ban Justin Classic Tortoise Sunglasses.