Looking for anodized aluminum 'flat bar' ?

[abl1111]

Maybe someone can direct me.

Not even sure what the stuff is actually called - but here's a description:

- many boat bench or helm seats use (2) pcs of flat anodized aluminum bar bent to a 'soft' 90 degree or so to allow for the bottom of the seat and the backrest to be attached - these aluminum pcs if leaned back hard would have a spring to them. They're usually about 4" or so wide, by approx 1/4"-1/2" thick by varoius legnths...

What's it called ?
Where can I buy this stuff ?

I want to build my own custom bench seat and need these supports.

Thx