Reach your full potential at the plate this season as you fine-tune your swinging mechanics with the SWINGRAIL(TM) Baseball/Softball Trainer. Designed for every bat and every skill level, the SWINGRAIL(TM) actively corrects poor technique during swinging motions to build proper muscle memory and take advantage of every pitch you make contact with. Dynamic Training for Every Player: Training device utilizes an elastic band and hook system to promote sound mechanics Actively provides immediate feedback throughout your swinging motion Helps build muscle memory to consistently perform during real games Great for dry swings, tee-work and soft toss Additional Details: Recommended for players ages 9 and up Not recommended for live pitching