TWIN Mobile boards make it easier for you, as they can be easily moved from place to place or to another room. You can turn and rotate the board so that it stands at the right angle in relation to the light and the people in the room. Then you can be sure that people can always see what the board says. The boards are reversible and easy to move around. The wheels can be locked so that the board is stable during use. The cross bar on the solid floor stand functions as a pen shelf.