they are iron bags (iron t model) VERY well made, thick leather with molded fiberglass back, they attach just like stock ones do. they hold alot more then stock ones do. wide enough to fit a 12 pack of becks in em. they show the back and inside on there website, I still have the bags, might sell em for 1/2 price, but I keep them for long trips when I want to carry more then the hd fiberglass ones. its easy to change the long streamers to black or whatever color you want http://www.ironbags.com/