Go go shopping now，we are your best choice.Features:Reaction Ball fielding aid is perfect for improvement of hand-eye coordination and reaction time. Volley the Reaction Ball between two athletes， or rebound it against a wall. Upon landing， the ball will bounce in an unpredictable manner. Repeating these steps will improve your speed and coordination for baseball. Develops quick reflexes for players at any fielding positionSix-knob design with rubber construction creates unpredictable bouncesThe fun way to improve your reflexes and agilityUse solo， against a wall or in a team settingGreat training tool for all sportsSpecifications:Diameter: approx. 5.5cmColor:Red/YellowPackage includes:1 x Reaction BallEmbrace life， embrace shopping.