There is disclosed a portable gum container, comprising a body. Articulation at the distal tip of the catheter is facilitated by applying selective tension on a steering wire disposed in a lumen that resides peripheral to a central working lumen. In the flow direction opposite the nozzle outlet openings, respective impact faces are arranged for reflecting the liquid that flows out through the nozzle outlet openings. In addition, the keys are generated without wireless interaction between nodes, thereby improving communication security. In addition, the steam reformer of this invention is designed in a manner such that an upper reactor zone, a middle reactor zone, and a lower reactor zone are removably connected so as to easily supply a catalyst and increase durability, and therefore such a reformer can be mounted in places which are small and require stability, such as hydrogen stations.