This matrix tape allows you to shape your whiteboard by applying lines. The tape/lines sticks to the whiteboard and can easily be removed after use. A role matrix tape/ detachable lines is 3 mm wide and 12 meters long.

Please note: Because the tape is adhesive, it might leave glue residues on the whiteboard after removing the lines. If you want to avoid this or if you still want to be able to move the lines, then opt for the Magnetic Black Lines