Pittstop Golf Smart Impact Ball is an inflatable ball that is placed between the arms of the user to provide feedback on their swing. Being small and attached to an adjustable lanyard to meet the needs of any size.
The purpose is to help you understand how the arm and body work during an effective smooth swing therefore improving your overall swing performance and keeping you 'connected'.
Once you have a feel for the correct 'smooth' swing you can release the ball and continue with your altered, improved swing.