Fast Ball Speed Off The Driver Callaway is the only golf ball company that has the new Dual Soft Fast Core; It's engineered for fast ball speeds with low spin for players needing spin reduction to optimize their launch conditions off the tee Low Compression For Incredibly Soft Feel The Dual Soft Fast Core lets you compress the ball on iron shots for long, straight flight; And it has amazing feel around the greens Fast Ball Speed Off The Driver - Callaway is the only golf ball company that has the new Dual Soft Fast Core; It's engineered for fast ball speeds with low spin for players needing spin reduction to optimize their launch conditions off the tee Maximum control and Versatility around the green