Solid construction, but check size first.
Two reasons for the lower rating are:
1. Size of the socket for the base of the mast. It is larger than anticipated. The inside diameter appears to be 2-1/4" The base of my mast is 1-3/4" That means that there will be a lot of play in this unless I add a shim to it it somehow. I was not expecting that.
2. There was an area inside the socket that looked like it had some liquid sitting there and it had a rust color. Most of that wiped off, but again, I was not expecting that either.
What is good: It looks to be a very sturdy item. I have changed my mind on how I am going to use this, so I will not be using the center spike most likely. Where I want to put the mast is where my heating and air conditioning package unit sits, so I will need to construct a platform for this to sit on. I will still use this as part of the base. I just won't be setting it into concrete.
As for durability, It has good-looking welds that should hold up long-term so I don't have any concern about that. It should last.
Verified purchase: YesCondition: New