Single Gang Box cutout Template

I made this Because I got tired of using the cardboard method. Adding the Level Made all the sense in the world to me. It has a screw Hole to mount to the wall if need be.

Link to the Bubble Level Inserts I used is here

https://www.amazon.com/gp/product/B07DMF57KM/ref=ppx_yo_dt_b_asin_image_o03_s00?ie=UTF8&psc=1