XPC MAX Hollow Cavity Iron Head The new XPC MAX irons give Maximum game improvement! It is great for the beginner or player who does not hit the ball on-center the majority of the time. Manufactured in two separate pieces like a metal wood to achieve the hollow sole design which frees up mass to be placed around the perimeter and back of the iron head - this raises the Moment of Inertia (MOI) keeping the head stable when struck off center so you can get your maximum distance and accuracy. The deep oversize cavity is made possible by the special raised structure lines in the floor of the cavity add strength while the thinner areas free up mass that allows for the shear size and full perimeter weighting of the XPC MAX. XPC MAX iron heads are impressive at set up with their thick toplines and full oversize cavity. Let the MAX help your game achieve its potential. Minimize mistakes and MAXimize performance! XPC Assembled MAX Iron: Assembled MAX Iron Head True Temper Steel Shaft