2" vertical track with .075 gauge steel (color coded green) for 7' high doors.
Track is 6' 4" in length and are designed to fit either left or right side.
Completely compatible with the lighter .055 or .060 gauge tracks, but are heavier duty. They do not bend or wear as easily.
Note: Garage door parts are designated left or right by the side on which they are viewed from inside the garage looking out.