Calvin Klein Eyeglasses. Series number: CK20526. Color code: 405. Shape: Square. Lens Width: 51 mm. Lens Bridge: 19 mm. Arm Length: 145 mm. Frame Material: Plastic. Frame Color: Blue. Lenses Type: Demo. Rim Style: Full-Rim. UPC/EAN code: 883901131482. Calvin Klein Demo Square Men’s Eyeglasses CK20526 405 51.Manufacturer’s Packaging Included. Packaging Size And Color May Vary.