Stiffness
S○○○●○F
Weight / Grip Size
4U / G55U / G6
String tension LBS
4U:≦30 lbs(13.5Kg)5U:≦29 lbs(13Kg)
Frame Material
High Resilience Graphite + Nano Resin
Shaft Material
High Resilience Graphite + Nano Resin + 7.0 SHAFT