Package Contents: You will receive 4 pieces of baseball connection balls, 4 inflat straws, and 4 plugs. Sufficient quantity and the perfect combination can meet your exercise needs.
Product Material: Our softball training balls are made of PVC material, which is tough and elastic, not easy to break even with strong hits, and has a long service life, making it an ideal choice for pitching and batting training.
Improve Efficiency: Just simply place the baseball swing trainer between your shoulder and upper arm, forearm during training, and maintain contact with the training ball when pitching and catching. They can reduce arm discomfort and improve body movement efficiency.
Suitable Size: These baseball hitting trainers are about 9.84in/25cm in diameter, suitable size, and lightweight, easy to carry and store, suitable for various sports.
Easy to Use: Our softball pitching balls are equipped with an inflation straw and stopper, allowing you to inflate the ball easily. It has good sealing and is not easy to leak. It is simple and convenient to use without wasting time.