Ray Ban Sunglasses. Series number: RB3721CH. Color code: 187/J0. Shape: Square. Lens Width: 59 mm. Lens Bridge: 17 mm. Arm Length: 145 mm. 100% UV protection. Polarized. Frame Material: Metal. Frame Color: Black On Gold. Lenses Type: Polarized Blue Gold Chromance. Rim Style: Full-Rim. UPC/EAN code: 8056597939973. Ray Ban Polarized Blue Gold Chromance Square Unisex Sunglasses RB3721CH 187/J0 59.<br/><br/>All Ray Ban Eyewear may include Case/Pouch and may include a polishing cloth. Case size and color may vary.