SKLZ Bolt Balls Soft Micro Training Balls are for the Lightning Bolt Pro Pitching Machine (machine sold separately). The Lightning Bolt pitching machine takes 26 balls at a time and pitches them at 30 mph with 5 seconds between pitches. This pack contains 12 Soft Micro Training Balls. These lightweight foam practice balls are perfect for continual hitting practice and also great for soft toss.

• Pack of 12 soft micro training balls
• For the Lightning Bolt Pro Pitching Machine (sold separately)
• Lightweight foam practice balls
• Perfect for continual hitting practice and also great for soft toss
• Small size encourages more focused batting training
• Foam balls have a 4" circumference