Standard Size Every Pitch Training Baseball follows official size standards, ensuring versatility for all training needs and official games. It has a circumference of 9 inches, a diameter of 2.8 inches, and a weight that meets official requirements. Resilience Constructed with a rubber core and a durable PVC outer shell to deliver performance and withstand intense training and frequent use. This baseball is designed to last through rigorous practice and daily use, making it a reliable training partner for aspiring pitchers. Efficient Learning Features an innovative colorful fingerprint marking system to help players quickly understand grips for different pitches, including fourseam fastball, twoseam fastball, slider, and more. Ideal for beginner players seeking efficient learning and clear grip guidance. MultiFunctional Helper Suitable for left or righthanded players. The gripfriendly fingerprints are designed to fit any grip, helping enhance skills for players at all levels. Use scenarios Individual practice at home, in the gym, or on the field to refine grip, release, and pitch repertoire using the fingerprint cues. Group practice or clinics where coaches demonstrate grips and track progress with the fingerprint markers. Pre game warmups or bullpen sessions to tune grip and motion before pitching.