-. Binding : Sports -. Brand : Callaway -. Feature : A combination of VFT and Hyperbolic Face Technology creates a larger sweet spot and increases ball speeds across the face for longer, more consistent distance / Deep clubface/undercut cavity system enables engineers to precisely position the CG, increase face compliance and engineer the face of each individual iron to maximize ball speed / Feel Management Technology; Produced through a dual material medallion that fine-tunes sound and promotes a crisp, dynamic feel at higher ball speeds / Speed Step 85 Lightweight Steel Shaft; Steel shaft is available in both regular and stiff flexes along with lightweight graphite options -. Label : Callaway -. Manufacturer : Callaway -. Model : X Hot Iron Set-P -. PackageQuantity : 1 -. ProductGroup : Sports -. ProductTypeName : SPORTING_GOODS -. Publisher : Callaway -. ReleaseDate : 2013-01-25 -. Studio : Callaway -. Title : Callaway X Hot Iron Set