Stop in for a cup of coffee

I got one of these on the advise of RRR. Works pretty good. I verified that I can get 15x7 wheels with a 4 1/2 back space and 255-60 15's on the rear of the GTS with stock suspension. Pretty cool little tool.View attachment 1714940549 View attachment 1714940550 View attachment 1714940551
How do you make the 'tire of wire'? Just bend it and get it close? Or is there some magic?