Answer: I think you are asking about what I would call a T stake or maybe more literally a v shaped metal post. These are skinny but sturdy metal posts that are pounded into the ground; the stake is not flat or round but instead has a shape to it to help it hold better. It also has a little triangle near the bottom to help it hold. They are typically painted green, are available in different heights and are sold inexpensively in farm supply stores.
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