Simply put, Callaway Golf engineers have re-invented tour golf ball performance. This isn’t a small step forward. It’s a giant leap. The Callaway Tour ix used Golf Ball is the most technologically advanced and longest tour ball you’ve ever played. The breakthrough in distance comes from innovative 4-piece inertia technology. A tungsten-infused outer core shifts weight away from the center of the ball, reducing driver spin for maximum distance and straighter shots. The soft core formulation provides tour-level feel and the urethane cover generates excellent short-game spin. A refined HEX Aerodynamics pattern further increases distance through reduced drag and better stability. 4 pieces, 2 cores, 1 unbeatable ball. Put the Callaway Tour ix used golf balls in your bag today and you will not be disappointed.