The Callaway Tour i Golf Ball is the best ball Callaway has ever made, providing the perfect balance of breakthrough distance and control. Innovative 4-Piece Inertia Technology utilizes a tungsten-infused outer core to shift weight away from the centre of the ball, reducing driver spin for premium distance and straighter shots. The softer core formulation provides unparalleled tour feel and the softer urethane cover generates more short-game spin for precision control and aggressive shot-making. A refined HEX Aerodynamics pattern further increases distance through reduced drag and better stability. 4 pieces, 2 cores, 1 unbeatable ball.