My speedster has a cover that came with it when I bought it, but no poles. I would assume that you place them anywhere on the deck to keep rain from building up in the middle and forming a pool. Instead the pools push the water out from the center and off the side of the cover.
For straps, are the long enough to go around the perimeter of the hull to keep it on? Or would it go around the stern of the boat or bow to keep it in place?