Youtube vids
https://youtu.be/xxgIA2jSnF4
https://youtu.be/F5d-47POqbo
Links
Mason's Line
https://www.homedepot.com/p/ANVIL-500-ft-Fluorescent-Yellow-Braided-Nylon-Mason-s-Line-57476/300960491
Line Level
https://www.homedepot.com/p/Empire-5-5-8-in-Line-Levels-Set-2-Pack-83038/100169030
Magnetic Tool box level
https://www.homedepot.com/p/Empire-True-Blue-12-in-Magnetic-Tool-Box-Level-EM81-12/100081706
