The Ping G400 irons feature innovative face-flexing technology that launch the ball faster and higher to give you tour-level distance with stopping power and forgiveness.Co-moulded 3-piece cavity badge provides an enriched impact response that creates a powerful sound and feel.Constructed from Hyper 17-4 stainless steel, which increases strength by 40% to allow for a thinner face and more face flexing.The face and hosel geometry creates a clean, streamlined look, preferred by golfers of all abilities.Complete with a HydroPearl Chrome finish, this premium finish reduces friction by 40% to improve launch and spin in wet conditions and from the rough.