That the Serengeti Monza shares a name with an Italian city home to a very famous racetrack is no coincidence. Like the cars that race on the Autodromo Nazionale Monza, this sunglass - with titanium acetate frame and Ultra-Light glass lenses - is a marvel of modern engineering and breathtaking design. Base Curve: 8 RX. Temple Length: 125 mm. Lens Size: 62 x 37 x 65 mm, DBL 17 mm. Frame Features: Titane/Acetate, Spring hinges, adjustable nose pads.