Bounce Reaction Balls. Features: Reflection Builder: Designed to Bounce Randomly, So Athletes Can Enhance Their Hand-eye Coordination and Improve Reaction Time. Train with the Reaction Ball to Prepare for Any Sport: Athletes Honing Their Skills to Perform in Baseball, Softball, Football, Soccer, or Hockey Games Can Decrease Their Reaction Time, Improve Alertness, and Enhance Agility. Solo or Partner Training: Train Solo by Throwing The Reaction Ball Against a Wall or Work with a Partner To Create Drills with Unexpected Flight Paths. Silicone Material: The Ball is Made of Highly Durable, Long-lasting Silicone Fun: Not Only is This Item a Great Way to Train for All Sports but It's Also an Entertaining Way to Play with Your Dog, Kids, or Friends. Specifications Diameter: 5.5-7.0cm Weight: 120g . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.