A.I. Designed Flash Face Cup
Callaway's first use of A.I. in a face design is seen in the creation of the Apex Pro 21 Irons, a design technology that is instrumental in raising ball speed and providing precise control from any lie. Within the hollow body of the Apex Pro 21 Irons also lies a certain amount of Tungsten weighting (up to 90g). This allows for precise positioning of the Center of Gravity on each club, helping to improve forgiveness on off-center strikes.