Anyone know just what these are actually called? I'm talking about the metal butterfly shaped things that the straps go through which then go through the wolfman sideracks. You can see what I'm talking about in this video. http://www.wolfmanluggage.com/Video/ExpDryTetonSaddleV.html Only difference is I need the ones with the center part can be released. I've seen heavy duty versions of this at climbing shops but never a small one. This is for a custom application, hence the need for the center portion to be removable. They make them like that in plastic. EDIT: looks like it's called a webbing glide. Hmm, can't find any where the center piece clips off or where the whole thing snaps together... Maybe a snap together D-ring can work.