Wilson Prostaff MOI Men's Combo Iron Set (Graphite)To improve every aspect of your game advancements in technology have created specialisation of design in every club and the new ProStaff MOI set capitalises on this idea. Perfect TransitionA unique hybrid shape and four distinct iron head designs perfectly transition from long range shots to short game accuracy. HybridsHigh MOI weight distribution makes it much easier to hit than long irons. Low CG head shape gets the ball airborne quickly. Hollow IronsFamiliar iron head shape at address helps improve confidence. Maximum perimeter weighting is achieved by a hollow cavity inside the head. High Launch IronsUnique transition club bridges between distance and scoring clubs. Thick sole to lower CG and improve trajectory Cavity IronsShot control perimeter weighting for accurate mid iron shots. Wide sole sweeps through hitting area and improves ball contact. Blade wedgesLow CG produces high spin for improved accuracy around the greens. Tour proven head shape and sole design enable a wide variety of shots for better scoring opportunities. GripsAll weather rubber grips with improved design in critical feel areas. Shaft OptionsLightweight low torque graphite shafts or True Temper steel shafts Steel Option Make UpHybrid #3 & 4 Graphite, Irons 5-SW Graphite with Hybrid Head Covers.