The post have a flange with 4 holes and I used lag bolts.
I know you can get white,you cut and fit to length.
Yes, I have the rail system on my stairs.
Hi Roberto. It is not necessary to attach the base cover to the concrete floor or base; it is secure around the 3" EZ Post and stays in place using its own weight. If you had to secure it, I would recommend Locktite's metal/concrete epoxy available on homedepot.com and in stores. Thank you for your question. Dan H. (EZ Handrail Dev. Team)
Hi Shawdawg. It most definitely can and looks great. Thanks for your question, Dan H. (EZ Handrail Dev. Team)