These specialized projectiles, designed for automated pitching devices, typically consist of a synthetic leather cover surrounding a core material, such as cork, rubber, or a composite. Different core formulations and cover materials influence factors like durability, speed, and trajectory. A variety of sizes and seam configurations cater to different skill levels, from youth leagues to professional training.
The use of mechanically propelled spheres for batting practice has revolutionized baseball and softball training. This technology enables consistent, repetitive practice, allowing athletes to hone their skills in a controlled environment. Pitchers benefit from reduced wear and tear, while batters can refine their timing and swing mechanics against a predictable trajectory and velocity. This consistency contributes to more effective and efficient skill development across various levels of expertise. The development of these specialized spheres has paralleled the growth in popularity of pitching machines, becoming integral tools for enhancing performance in baseball and softball.