Golphin gfk junior golf irons designed for kids using aerospace technology these clubs are lighter create more distance and are more forgiving than most competitors the gfk iron range use aerospace alloy to create a 22 lighter club than other manufacturers of kids clubs lightweight graphite shafts ensure that weight is kept to a minimum and high flight grooves aid ball control two irons are available in the gfk range a 7 iron 34 degrees loft and a swedger 62 degrees loft both