Callaway Big Bertha Diablo Golf Balls feature a new High-Resiliency core that is not only soft to provide you great feel, but also fast so you won't sacrifice distance. The Big Bertha Diablo Golf Ball has unique low spin properties so players who impart too much spin off the driver will see greater distance with fewer severe slices and hooks. This 2-piece golf ball is the perfect choice for golfers looking for softer feel and a lower driver spin.