The best official size and weight...
CARBON NANOTUBE of NANOSCIENCE provides an exceptional repulsion power.
Shaft: Graphite, CARBON NANOTUBE
Weight / Grip Size: 3U (Ave.88g) G4,5
Stringing Advice: 3U 19-24 lbs
DURA-Frame and carbon shaft for sharp repulsion.
Weight / Grip Size: 2U (Ave.93g) G3,4,5
DURA-Frame provides a solid feel and high-level control.
Weight / Grip Size: U (Ave.98g) G4