Controlled Flight: Strategically-placed square holes decrease the balls’ travel distance, so athletes can spend less time shagging and more time training. Improve Technique: Controlled flight helps hitters increase precision and strength and reduce cutting and rolling. Durable: Made of durable materials to withstand repeated impacts. Its 2 oz. rubber shell rebounds after every hit. Immediate Feedback: These training baseballs give immediate feedback for all levels of baseball practice, so hitters can instantly assess their performance. For All Skill Levels: Use for training in fastpitch softball or baseball, both front and side toss, for all levels from Pee-Wee to intermediate to Division I. Includes: Each order is for a 6 pack of 9” training balls.