It has to be the concept of attaching an extended rod at the end of the club being practiced to get the golfer to quit flipping their wrists. This is commonly referred to as “The Punisher.”
This training aid activates the use of the golfer’s shoulders and back muscles to get the club in motion. It also promotes the use of keeping your arms and shoulders in the triangle position throughout impact. If you use your wrists or hands too much, the golfer will be hit with the extended rod in the side as direct feedback to an incorrect chipping motion. Practice this before and after you practice your short game without the training aid to get maximum results.