I had this made locally, and couldn't be happier with it. It's made out of heavy duty black vinyl to match the Jeep top. It secures to the trailer using a long length of bungee running the perimeter of the tarp in a tube that's been sewn into the tarp. Then right where the trailer tarp hooks are the tube has cutouts that let the bungee out of the tube to grab the hook. No grommets, no snaps, and hopefully enough play to allow for the vinyl and load to shrink or grow a bit. Cost $120 - very fair price IMHO.