Callaway Women's RAZR X Hybrids 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 Generates hotter ball speeds for longer distance Inertia Driven Design Increased head size of the standard model creates better forgiveness Produces shots that fly higher, longer and straighter Standard and Tour Models Standard models have an offset hosel that assists in squaring the clubface at impact while providing a look at address that boosts confidence Tour models have less offset to enhance workability This product comes with a headcover with an interchangeable tab to indicate the respective club number (3, 4, 5, 7, 9 or X)