Fitness-Mad React Ball (10cm)An incredibly versatile training aid, the Fitness-Mad React Ball can be used in various ways and can help you improve your agility, hand-eye coordination and reaction time. Great for use on your own or with a partner, or with a group, the React Ball is engineered to bounce in an erratic and unpredictable fashion.Features10cm diameterHelps improve agility, hand-eye coordination and reaction timeDesigned to bounce in an erratic and unpredictable fashionUse against a wall or with a partnerTraining tool for all ball sportsBuy Fitness-Mad Training Aids from Chain Reaction Cycles, the World's Largest Online Bike Store.