The Staff Model X TRK360 golf ball is a tour-caliber, four-piece urethane golf ball that combines high ball velocity with stable and consistent ball flight. Made for players who want a firm, fast ball, the Staff Model X TRK360 goes longer and has low spin off the tee. Each Staff Model X TRK360 ball is painted using a finely controlled application process that ensures a nearly flawless finish, resulting in the highest-caliber performance.