This is a position that keeps the opponent down in your guard. Popularized by Eddie Bravo, also the founder of many techniques from this position. By being flexible and using a leg to hold the opponent down, one arm is free to work on submissions, sweeps or to strike the opponent's trapped head. The rubber guard is set up like a branching path or choose-your-own ending story. There are six basic "levels" in the rubber guard, with one major option and two minor options along the way.