Use for two seasons. Men's RH Stiff Steel Ping G400 Series Golf Club Set - Irons, PW, UT, SW, 3W and Driver. Clubs were fitted to a man who is 6'4". Used for two seasons. Two of the grips were replaced on the irons. Ace-flexing technology launches the ball faster and higher to give you tour-level distance and stopping power with forgiveness and feel. The multi-material G400 iron flexes like a catapult as COR-Eye Technology and a top rail undercut launch shots extremely high and far with tighter dispersion. One PING pro said during testing: "This G400 7-iron has turned into my 6-iron but in an 8-iron window." Innovative COR-Eye technology generates 18% more flexing for hotter ball speeds and a higher peak trajectory for better stopping power. Hyper 17-4 stainless steel is stronger to allow for a thin face. This premium finish reduces friction with the turf 40% to improve launch and spin from the rough and wet grass, which translates to increased forgiveness. PING’s A-ET 2.0 Shaft's Ascending Weight Technology get heavier from long irons to short irons/wedges. Lighter long-iron shafts help square the clubface. Short iron/wedge shafts are heavier to improve trajectory control and feel. A unique top rail design combines with COR-Eye Technology to increase flexing, ball speed and height. The co-molded 3-piece cavity badge helps provide a powerful sound and feel.