The Technology of Cheap Callaway X Hot Driver shows here
OptiFit Technology: OptiFit Hosel allows golfers to set the adjustable speed frame face in either the Open, Square or Closed positions to fine tune trajectory and appearance. Speed Frame Face Technology: A combination of VFT and Hyperbolic Face Technology creates a larger sweet spot and fast ball speed for maximum distance. This technology also saves weight that can be redistributed to the perimeter of the clubhead for a higher MOI. Ultra Thin Wall Casting Technology: Callaway's thinnest casting technology ever creates a lighter overall configuration and an optimized CG to promote more distance.