Reaction ball is designed to bounce unpredictably and train athletes to to the unexpected. This tool develops eye/hand coordination and improves reaction time and accuracy. Perfect for use by professional athletes that are fine-tuning their skills, athletes that are developing their technique. Features - ColorAssorted Color - Material: Silicone. - Size: 5.50X5.50X5.50cm/2.16X2.16X2.16in. - Reaction ball is designed to bounce randomly, so athletes can their hand-eye coordination and improve reaction time. - Train with the reaction ball to prepare sport. Improve alertness, and agility. - Athletes honing their skills to perform in baseball, softball, football, soccer, or hockey games can decrease their reaction time. - Train by throwing the reaction ball against a wall or work with a partner to create drills with bad and unexpected flight paths. - Not only is this item a great way to train for , but it’s also an entertaining with your dog, kids, or friends. Package list: 3 x agility balls