• 1 driver
• 2 woods
• 6 irons
• 1 hybrid
• 3 wedges
• 1 putter

All of these clubs are very expensive due to all of the research and testing that goes into their design.  Club shafts are generally made out of graphite.  The stiffness of shafts can vary a lot.  Generally a golfer with a faster swing speed needs a stiffer shaft.  Club faces are made out of light metals such as titanium, steel, and steel alloys.  A huge advancement in golf club technology is the ability to adjust your club face.  Top of the line drivers now come with a tool to adjust your driver head to compensate for spin that may be causing a slice or a hook.

"Modern technology in golf has allowed for straighter and longer ball flight, and enables it to happen at a higher frequency.  The obvious result is higher consistency, which enables lower scoring.  Most golf courses and the USGA have made courses longer and narrower, deepened bunkers, grown thicker rough, and cut greens and surrounding areas shorter in order to hinder low scoring as much as possible due to newer technology."(Jorgenson)

The sweet spot on a club is the spot where the ball will generally leave the club with little to none unwanted spin.  A heavier club face will cause more resistance to the shaft bending which causes unwanted spin on your ball.  The only problem with this is that a lighter club is optimal for a faster club speed.  Product researchers put their time into finding a happy medium between the two while experimenting with different metals.