MIZUNO Senior Driver Schaft. FUJIKURA AIR SPEEDER. 45g ST Max STX 230 STZ 220 STG
Fujikura AIR SPEEDER Driver Shaft. SENIOR FLEX 45g. MIZUNO Adapter. Senior Flex 45g. Compatible with all recent Mizuno drivers (also being used in Kirkland drivers). Kirkland Signature Driver. ST Drivers (All models).