A driver is a type of golf wood that has a head that is typically 460cc (cubic centimeters) which is the max amount of head size aloud be the the governing rule of golf. A driver has a max shaft length of 48 inches allowed by the USGA (United States Golf Association but the standard length of off the rack drivers is 45 inches. The driver is the club that you would use on the tee box to get the most distance, you would not always use a driver on all holes depending on the playing conditions such as par of the hole, how far you hit the ball and distance.
SIM2
This very aerodynamic driver just might give you more distance.