PURPOSE: To eliminate the trouble to fit dedicated holders specially and to utilize free spaces nearby hooks effectively by enabling the hooks, which are fitted on a wall surface in a train, etc., to function as holders for advertisement paper.

CONSTITUTION: A couple of two right and left hook main bodies 1 and 2 to b fitted on the wall nearby box seats in the train are constituted and right and left symmetrical grooves 6 and 7 which guide and support the right and left edges of the advertisement paper P between the wall and surface are formed in the opposite edge parts of the hook main bodies 1 and 2. Then the advertisement paper P is inserted into between the guide grooves 6 and 7 from above and then held between the hook main bodies 1 and 2. Consequently, the trouble to fit the dedicated holder for displaying the advertisement paper P specially is eliminated and the free spaces nearby th hooks 1 and 2 can be utilized effectively.