My photo looks sideways when i wrote this so I'll check to see if it posts that way. Very easy to install IF IT A TRUE 3.5 X3.5. I found it easiest to use these by sliding the base from the top of the post down, not very easy to use the way its supposed to go on if the post is too wide. Fairly sturdy, i wouldn't recommend leaning with alot of weight against the rail but i will buy these again.
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