The d300 golf irons d distance and these clubs certainly deliver that with new improved impact from the flx face the flx face of the iron acts with a trampoline effect as the ball impacts the iron the face flexes and the ball springs off aiding distance and trajectory the irons benefit from heel toe weighting system across the entire set weight pods have been sited around the edges of the irons to increase and generate a more forgiving impact area a series of power holes are integrated in