The TITANflex 820520 Eyeglasses by TITANflex has many brilliant features. This item is eligible for prescription lens installation and has a high enough vertical width for your bi-focal or progressive lens. The width of the bridge of this frame is 18 millimeters. Black is the most common color seen in the dark. Get down-to-earth when you use brown colors. The length of the temple pieces are 145 millimeters. This item is eligible for prescription lens installation. The eyesize of this item is 55 millimeters. Item ranges in price between $150 and $200. Full Rim glasses cover the lens on all sides. Light and flexible, titanium is a great for comfort and those with certain metal allergies. It’s nature’s color for water and sky.