Tanner SAFETY T-BALLS look and play just like regular baseballs but are made of much softer foam rubber core, allowing young players to stay safe while learning the fundamentals of hitting, catching and throwing. Unlike a regular baseball which has a hard core, a safety ball is made of foam which helps reduce risk of potential injury if a child is hit with a ball during play or practice. In addition, the dense foam makes learning to catch easier as a safety tee ball is less likely to sting the hands when kids catch the ball with their bare hands.