Have a quick question about brake lines

[erikz 28]

What does the coil spring looking thing over the brake line do? I see this on fuel lines too. I guessing it's for strength. Does it need it? Where I can buy these?

[trans-am nut]

For added protection, you can find them at inlinetube or classictube

[jpdeuce]

I think they are referred to as rock guard.

[erikz 28]

Thanks. Sorry guys about the dumb question.

[John Wright]

Thanks. Sorry guys about the dumb question.
If you didn't know...then that was NOT a dumb question :)