The number 1 is the target side of the device for swing plane. The number 6 is the swing plane take away . The number 7 is the arc from the top on the way down to the ball.
Each section 1,6, and 7 have precision gauges buit into the device that are fully adjustable and customizable for ones practice. Allowing one to know exactly how they are practicing. If adjustments are needed,one can fully adjust and practice the new positions and repeat. Whether one wants to practice inside or outside in any arc, one knows how many degrees are set on each section of the 671 Tour Edition ™ device. Amazingly Effective for Tour Pro to Beginner golfer! Try it and you’ll see the difference in your golf game.