Review on 🔩 Efficient Installations Made Easy: Anchors Hollow Self-Drilling Aircraft Expansion Pipe by Todd Phillips

These were frankly awful. While conceptually they should work, in my experience they don't get properly tightened and pressed against the back of the wall. Once in the wall, the screw in the dowel was tightened so that the arch rotated in the drywall as it was tightened. Wouldn't recommend it.