"The BenderStik was developed by 2009 National PGA Teacher of the Year Mike Bender to be the most versatile training aid you'll ever use.
Much like having your own coach with you the BenderStik has a large yellow foam ball that can be positioned to monitor virtually any movement in the swing. Check your backswing plane see if you have a flying right elbow watch for excess head movement or see if you sway laterally. With nothing more than your bag to hold the BenderStik a club and some balls you can ensure you are making the right moves every time you practice. Product includes an instructional DVD that walks you through the golf swing while detailing the benefits of the BenderStik. "