Fitness-Mad React Ball (7cm)A great training tool that can be used pretty much anywhere, the Fitness-Mad React Ball can be used on your own or with a partner. The ball is specially designed to bounce in an erratic and unpredictable way that helps improve your agility, hand-eye coordination and reaction time.FeaturesA great training ball for all sportsCan be used against a wall or with a partnerDesigned to bounce in an erratic and unpredictable fashionImproves agility, hand-eye coordination and reaction time7cm diameterBuy Fitness-Mad Training Aids from Chain Reaction Cycles, the World's Largest Online Bike Store.