Using Media Flanges for Paper Tubes (Cores) with an Internal Diameter of 2 Inches The media flanges for paper tubes (cores) with an internal diameter of 2 inches are optional items. For information about purchasing them, contact your authorized Roland DG Corporation dealer or visit our website (https://www.rolanddg.co.jp). : End cap: Remove the pin. If it is difficult to remove the pin, use a pair of pliers or a similar tool. : Media flange for 2-inch media: Align the depression with the projection, attach the media flange, and then insert the pin.