Usage Tips: About this itemReaction Agility Balls: Made of durable and high-density rubber and consist of a six-hemisphere design, these reaction balls create dynamic and unpredictable bounces. Works against all hard surfaces or walls and can be used as a fun way to improve technique in drills and training exercises.Instant Feedback: Get a better analysis of your players engagement with the ball as you receive instant feedback on the their reaction time.Volley Abilities: Easily volley the reaction ball between players or rebound against the wall for independent training as these balls work great against any hard wall or surface.Pick Up The Pace: With these balls learn to master the basics, which helps in mastering the game.Improve Reflexes: These reaction balls are ideal for sharpening your hand-eye coordination and can be used as a rehab and exercise tool.