Poly grain silo, used, 4ft square base, about 12 ft tall. We could possibly haul it for you if its not too far.
The opening at the top is 17.5 inches across. If I remember correctly it can hold 3.5 ton of feed. It was last used for calf feed.
We do have a new collar with a slide valve that can replace the collar that is on it right now. It is included in the price. We cleaned out the inside.