Driver style bindings can be distinguished by the toe piece. Nothing to do with looking like plastic or not. OP's binding has the driver style toe, and I'm guessing they are STH12's because their graphics look identical to mine.
secret fucking SNOWBALL mission...
Chaitea, "The best gloves are mittens."
Park Guy, "Everytime it snows my dick takes a beating."
No. The only full metal binding is the 920 Steel. No STH/FFG is full metal. The heel tray is steel, but not the entire heel housing. And the post of the toe in the 16 is metal, but not in the 14 nor 12.