This is a Traffic Control Label ARROW used on two way doors to direct entering or exiting . Label is a full 6 inches in diameter and is a peel and stick apply. The label is applied to either side of the door and if used on a glass door the back side displays the same arrow . This label is used for Automatic Doors. If one way traffic is desired on a glass door then a do not enter label #812 is needed. (814)