Golf Shop: CLEVELAND HiBORE Iron Set 3-PW with Graphite Shafts

"Cleveland HiBORE Iron Set - Graphite Shafts: Because the clubface and hosel are cast as one piece, HiBORE irons have no welding spots, so the sweet spot is the size of the entire clubface. They re also more forgiving, thanks to hollow construction and an oversized face. The hollow design moves weight away from the face and positions it lower and deeper in the head to increase stability (moment of inertia) and accuracy."