Callaway RAZR X HL Graphite Hybrid Zero Roll Design Clubface with Zero Roll produces a higher launch angle on shots hit low on the face, increasing distance with softer landings. Aggressive VFT Technology Precision shaping of the face thickness in each club increases the size of the sweet spot. This technology generates hotter ball speeds for longer distance. Vertical CG Optimization Thin crown allows for a lower CG, putting it in-line with where most amateurs strike the ball on the clubface. Vertical CG Optimization also promotes high, strong trajectories that fly farther and land softer. Inertia Driven Design Clubheads have a slightly larger footprint for a high MOI and exceptional forgiveness. The increased hosel offset helps square the clubface at impact while providing a look at address that boosts confidence. This product comes with a headcover with an interchangeable tab to indicate the respective club number (3, 4, 5, 7, 9 or X)