Helps give students a good feel for the angle of the putt when faced with less than level or those not so straight shots.  You in effect get to shape the cup with the angle in which you would like the student to strike the ball with the putter.  PGA Pro instructors use the Pathfinder to teach their students to develop better judgment and more accurate ball control.  The Pathfinder is made out of the same material as the Cooke Cutter Game, so the ball reacts to it in the same way.  It also can be used in an office, hallway or other rooms.  The PathFinder comes with 3 Golf Balls.