I didn't need stainless for my application but the price for stainless was better than the main name brand in galvanized that has a monopoly on bracket hardware everywhere else.
The brackets came with a massive bag of Philips head stainless hardware that I ended up not using as I wanted structural screws/lags to anchor into the wood and larger (company name I won't use) concrete screws to lock the base plate to the foundation.
These are all laser cut from the factory and covered in a protective film if you need the shiny finish. They shipped in an extremely well padded box with each piece of each 2-part bracket being individually wrapped. Post base has a cover plate that further lifts the posl off of the ground so factor that into your overall post height.
I deducted one star on ease of use as I wanted to use standard 1/2" concrete screws and anchor bolts but these base plates have a ~5/16"-3/8" hole (probably metric) to accommodate the hardware that shipped with the plates. (I opted not to use.) Stainless is notoriously difficult to drill through and I burned up several step bits to add center holes to 20 base plates. Even with going slow using a ton of pressure and coolant, stainless likes to work harden to become impossible to drill.
Other than my particular issue, these post bases are perfect for dimensional 6x6 posts (5.5"x5.5") I had 2 posts that were rough sawn and true 6x6 that had to be shaved to fit but it all worked out.
