This rod is a flat iron bar with a small button on one end. When the button is pushed (a move-equivalent action), the rod does not move from where it is, even if staying in place defies gravity Thus, the owner can lift or place the rod wherever he wishes, push the button, and let go. Adventurers have found the immovable rod useful for holding ropes, barring doors, and all sorts of other utilitarian tasks. Many adventurers have found it useful to have more than one. Several immovable rods can even make a ladder when used together (although only two are needed). An immovable rod can support up to 8,000 pounds before falling to the ground. If a creature pushes against an immovable rod, it must make a Strength check (DC 30) to move it up to 10 feet in a single round.