A container for containing a long article wound on a bobbin into a roll and having both widthwise ends includes a container body having at least one end formed with an opening, a cover closing the opening of the container body, a sealing member sealing a gap between the container body and the cover, an stem fixed to either the container body or the cover so that the bobbin is mounted on the stem, a bobbin fixing unit for fixing the bobbin, and a holding unit for holding the article wound on the bobbin so as to prevent the article from being detached from the bobbin by pressing both widthwise ends of the article wound on the bobbin.