The HOCKEY HAMMER is a training aid that is ILLEGAL for game play. The BUBBA BALL is also a training aid that is ILLEGAL for game play. The Bubba Ball is half white and half red. The distinctive coloring was selected to help make the Bubba Ball easy to spot if it gets mixed in with legal balls. They're perfect training buddies and when purchased together you get the Bubba Ball for more than 50% off.