SKLZ Bullet Ball Baseball Pitching Speed Sensor New The SKLZ Bullet Ball Baseball Pitch Velocity Trainer measures velocities up to 120 mph and adjusts to distances from 46' to 60' 6". It provides instant feedback on pitch speed and is suitable for any age or skill level . The device includes a built-in sensor and one replaceable LR-41 mercury battery. It can be used on the field or in the backyard, allowing for versatile training. Accurate distance input is crucial for precise velocity measurement, making it a valuable tool for pitching practice. The trainer is designed for convenience and effectiveness, offering a reliable way to track pitch speed New - Sealed minor damage to package, however, Unopened ♻️ backyard field mlb minor league training competition sports leisure