As far as I know, there are two main versions being sold right now. The older style has a front left floor board, a front right floor board and a toeboard that goes right across. A newer product has the bottom half of the right side of the toe board and floor combined ( complete with the angle) and one for the left side. These seem to be made from a thinner gauge than the older style. I am using the older style because I like the heavier gauge better.
