Reporting question for Battery Box - Gotoh, Dual, for 9 volt batteries

Product:
Battery Box - Gotoh, Dual, for 9 volt batteries

Question:
Hi, I’m looking for a 18v battery box to be installed in the strat style guitar. I asked my Tech and he told me to get the jig (template?). I am wondering if you have any jig or template that comes with the 18v battery box you stock.