LINDBERG ( LINBERG ) Eyeglass frames are made of durable titanium wire. The ultimate in lightness with a weight of only 3 grams. There are many designs and shapes to suit every face. The most special feature of this model is You can choose the color of the top, bottom and temple frames to be a special and unique frame according to your favorite style. Model Air Titanium Inner Rim ( Air Titanium Inner Rim )  Retains the legendary classic of .LINDBERG (Linberg) and is still very popular with wearers around the world today.