GANT Eyeglasses. Series number: GA3179. Color code: 001. Color: Demo Lens. Shape: Round. Lens Width: 49 mm. Lens Bridge: 19 mm. Arm Length: 145 mm. Frame Material: Plastic. Frame Color: Black. Lenses Type: Demo. Rim Style: Full-Rim. UPC/EAN code: 889214020734. GANT Demo Round Mens Eyeglasses GA3179 001 49.