The Callaway SR2 golf ball offers optimized aerodynamic performance for more distance for athletic swing speeds. A very soft urethane cover delivers tour-level control and an incredibly soft feel. Superior spin separation regulates spin and control, increases ball speed, and maximizes distance. The SR2 has the best aerodynamic performance for players with swing speeds between 90mph and 105mph. The hex pattern is engineered specifically to optimize lift and drag with a long, stable, penetrating ball flight that holds its line in the wind. Our official pre-owned refinished golf balls are used golf balls that are reconditioned using a modern process in a factory that manufactures new golf balls. This process does not affect the playability of the golf ball, but brings their Cosmetics and performance up to a level where they appear and behave comparable to new golf balls.