This iron rod has a button on one end. You can take a Utilize action to press the button, which causes the rod to become magically fixed in place. Until you or another creature takes a Utilize action to push the button again, the rod doesn’t move, even if it defies gravity. The rod can hold up to 8,000 pounds of weight. More weight causes the rod to deactivate and fall. A creature can take a Utilize action to make a DC 30 Strength (Athletics) check, moving the fixed rod up to 10 feet on a successful check.
RollQuest summary Action (button): rod becomes fixed in space; holds up to 8,000 lb.
RollQuest ships the D&D 2024 SRD as a content pack, on a 5e character sheet that does the maths - roll from the sheet and let the numbers work themselves out. Free to start.