Thanks to @fujimatco for sending me some tape that is safe to use on the mats! It really helps when teaching to show angles! If you’re looking for a professional way to tape off your mats either for teaching or your students returning to your gym for COVID. Make sure you check out @fujimatcs tape solution
https://fujimats.com/products/mat-marking-tape?_pos=1&_sid=48909acc0&_ss=r