LiteOutdoors Guyline & Tensioner Kit - 1.8mm Diameter - 60 or 100 feet - Ultralight Reflective Tent Cord, Lightweight Non-Slip Cord Adjusters. Camping, Hiking, Paracord

I ended up getting a onewind 12' tarp and putting these on the tarp loops. https://a.co/d/01IEGzEL Makes it so if the rain causes the tarp to sag, I can adjust the lines from under the tarp. I also use a snake skin for easy deployment of my tarp.