Immovable Rod

You can use an Action to press the button, which causes the rod to become magically fixed in place.
Until you or another creature uses an Action to
push the button again, the rod doesn't move, even
if it is defying gravity. The rod can hold up to
8,000 pounds of weight. More weight causes the
rod to deactivate and fall. A creature can use an
Action to make a DC 30 Strength check, moving
the fixed rod up to 10 feet on a success.