Here’s what I used for the spacers. It has become a popular question. I can’t remember the exact diameter so just make sure you get the right size. Link below but again measure first as they have a few options in sizes.
https://www.lowes.com/pd/Hillman12....
Tape and Drape for garage. 12ft x 65ft
PlazMask PreTaped Masking Film, 12Feet X 65Feet https://a.co/d/6jWzXbs