look i don't know shit about shit..but I'm gonna toot my own horn, i rip it up when i ride...i've had a couple of drake bindings a pair of technine pro mfm...and now i have the burton missions..these things strap on tight AND fast...i dig em.
mine are metal so they're pretty strong, light and durable..
in short, if your feet had a brain, your footies would have a piece of mind when you strap up.
good purchase. get 'em....or else.