Innovation abounds in the all new D-FYTM transition set, starting with seamlessly fused FYbrid® long-club technology, powerful hollow-core mid-range clubs and accurate perimter-weighted scoring irons. But the real breakthrough is a Half-and-HalfTM shaft that delivers the speed and soft feel of graphite with the precision and consistency of steel. It's the best of both worlds for the low-to-mid swing speed player.