I bought them from a forum member and we're not sure who makes them. I did a search, but can't find anything like them. I would like to know in case anybody asks, so I can send them in the right direction. There is a part # on the installation instructions of 4320ST and 4320BL is written on the box.

Here are some pics:

 

Don't know who makes them, but they look great. I'll be watching the thread to find more information.

 

I like them also. Looking to see who makes them.