• Correct forearm rotation and the 9-inch journey of the left shoulder as you coil against a solid lower half.
• Correct movement of the club and body in sync with one another. 
• Helps with rotation.
• The skill of hinging your wrists correctly in the backswing.
• And most importantly.. the correct kinematic sequence to your swing- how to initiate the uncoiling of the body from the ground up. 

How to use? 

• Open the box and assemble the training aid easily in one step. 
• Adjust the grip so that you can stand comfortably in your golf posture while the ball end of the training aid will attach just between the sternum and the shoulder socket. 
• Once set, create pressure between the ball end and the place it attaches to the body and swing away. 
• Practice 3 sets of 10 repetitions each day before going to play and see the difference in your co-ordination. 

It also works as a fantastic warm-up device before you tee off, getting your swing sequence correctly. It improves your range of movement without having to spend hours stretching, and it acts as a constant reminder of how a good backswing should feel.