The Laser Line snaps on the front of the
Instructional DVD is included.shaft with a twist of the wrist. Turn the laser on and see a line square to the face and on the target line. Since the laser is a line, it is easy to see if the putt moves off-target. When used with the Putting Plane, the will track perfectly back and through.
For more details about the Putting Laser Line, click here.