Specially designed to work on jaw grading and stability, each arm has a different thickness to practice various jaw heights:
The orange arms are .125″and .2″thick (labeled 1 and 2, respectively)
The magenta arms are .3″ and .4″thick (labeled 3 and 4, respectively)
The teal arms are .5″ and .6″ thick (labeled 5 and 6, respectively)
