This is a vertical sign with 'In Class' text printed on it. It has a hole at the top for a hook, allowing it to be easily hung on door handles or walls. It is useful for academies, training centers, and counseling rooms to restrict access by outsiders or to indicate that a class is in progress. It features a clean white background with a highly readable font to enhance visibility. For bulk orders, printing specifications and production lead times can be confirmed through separate consultation.