The SKLZ Impact Practice Baseballs come in a pack of 12 and are constructed with proprietary pop-back material, similar to material used to make car bumpers. Impact Baseballs keep their shape and won't crack like standard practice balls, even after thousands of swings. Built to provide instant feedback on contact, they help hitters tune their swings to find that all-important sweet spot.

• Extremely durable and built to last thousands of hits
• Provide hitters instant feedback on contact
• Proprietary pop-back technology that collapses on contact without cracking
• Limited-flight design for easy retrieval
• Heavier than traditional practice balls for more feel
• Comes in pack of 12