NIKE One Vapor Speed 1-Dozen Golf Balls Rubber Pack of 12 Vapor Golf Balls optimized for amateur players who desire longer distance off the tee with added consistency and durability Tour-proven Power Transfer technology maximizes velocity, distance, and control with added off-center hit forgiveness 3-piece ionomer blend construction for added length and consistency Reformulated core improves feel and durability and optimized aerodynamics increase ball speed for greater ball flight Engineered for 80+ mile per hour swing speeds