The 7799 model is from the Titan Minimal Art, The MUST Collection, and features an all titanium temple without hinges. The 7625 shaped pattern is oval, which is good for progressive lenses. Silhouette 7799-7625 are unisex prescription eyeglasses designed for both men and women. This is a 3-piece hinge-less and rimless frame. The shape of the frame is oval and has adjustable nose pads to provide maximum comfort. This particular scintillating color is sterling silver. The frame is made of titanium. Titanium is a metal that is very light and highly flexible. These characteristics make titanium a popular choice for designer eyeglasses such as Silhouette eye-wear. The size available is 48-21-150 B32 (eye size-bridge width-temple length-lens height in millimeters). These spectacular progressive friendly eyeglasses are manufactured in Austria and comes with a protective carrying case and 2-years manufacturer's warranty.