Innovative face-flexing technology launches the ball faster and higher to give you tour-level distance with stopping power and forgiveness. The multi-material G400 iron flexes like a catapult as COR-Eye Technology and a top rail undercut launch the ball higher and farther. One PING pro said during testing: "This G400 7-iron has turned into my 6-iron but in an 8-iron window." Golfers can expect one less club to the green with the height of two less clubs. That's a powerful combination.