Callaway Big Bertha B21 Driver (9*) with Regular HZRDUS Smoke iM10 Shaft
Upgraded Project X HZRDUS Smoke iM10 50g 5.5 Regular Flex Graphite Shaft. Callaway Big Bertha B21 Driver. The B21 driver is a very forgiving design coupled with Flash Face and Jailbreak technologies to provide high ball speeds.