SKLZ Quickswing PX4: * Multi-use batting and fielding trainer * Develops fast hands, sharp reaction times and solid mechanics * Ideal for any skill level * Auto-feeds 12 baseballs, 8 softballs or 14 small training balls * Releases balls every 6, 8 or 10 seconds * It is a multi-use batting and field trainer. * It is perfect for any skill and level. * It auto feeds 12 baseballs, 8 softballs, or 14 small training balls. * It can release balls every 6, 8 or10 seconds. * It requires 3 size AA batteries which is not available with it. * It helps to develop fast hands, sharp reaction times and solid mechanics.