I bought a set of stainless header wrap ties.
They look like zip ties in that one piece feeds into the other. But unlike plain wire, you don't seem to stab through the wrap.

How do you use this stuff to hold on the header wrap?
I was thinking I could put a layer down with one of these under it, then put a layer over it and tie them together, then continue to wrap. Is that how it is done? Or am I supposed to cut a slot?