This spectacle frame is made of all duralumin material. Duralumin, a material mainly used for airplanes and racing cars, is an aluminum material that is an alloy of copper and magnesium, which is very strong and light. The attractive point is the endpiece of various colors connected to the leg through the front part. In addition to the square version (D.PRO), it was released in round (D.ELPIN) and hexagonal (D.MELLOW) versions.