bustle cage

Hey guys, I’m in need of some help.

I’m trying to build this bustle cage and need to know what kind of wire to use and where to possibly buy it. I know I’ll need 2 different gauges because the last piece of wire looks larger in width.

I’m looking at coated hoop wire, but it seems much more pricey than uncoated, and me just using the material to do it myself. I want to ensure the wire will hold up for a long time.