The Impact Ball: this effective training aid is available in three different sizes: S, M, L. It is a light softball. It is held between the arms under the elbows. That prevents "spoons" and the dreaded "chicken wings". The result is better form at the moment of impact and ball contact. This results in longer and better-controlled swings. Videos: https://youtu.be/yfVgCSPeuWY https://youtu.be/eJhiy2vTuok