| 摘要 |
PURPOSE: A dichroic board marker is provided to enable users to use various colors stored in one body by including black and red board markers in one body. CONSTITUTION: A dichroic board marker includes two cores with different colors (black, red) projected from one board marker body. The tip of the cores is inclined toward the outside of a central axis of the body. Each storage container for the cores is stored inside the body. The color on the outside of the body is the same with the projected cores. |
