Improve Reaction - This catch trainer set can improve reaction speed, hand-eye coordination, focus, reflexes, tracking, and decision-making skills. Portable & Flexible - Carry this agility training set with you, use it anytime. The construction of our catch trainer and reaction balls offers great flexibility to help avoid injury. High-Quality Materials - Made of high-quality PU material that is safe, lightweight, and waterproof. Reflex balls are made of strong and durable rubber that produces unpredictable bounces to challenge the user's reflexes. Pregame Warm-Up Tool - Can be used for almost any sport as a tool for pregame warm-ups and game-like scenarios in solo or team training. Suitable for baseball, basketball, and football training. Pet Training Toy - This set can also be used for interactive games between the owner and the pet dog, or for exercise and fun with family and friends.