Flex Extra Stiff Frame HM Graphite / Namd / Tungsten / Black Micro Core / Nanometric Shaft Composition HM Graphite / Namd Joint NEW Built-in T-Joint Length 10 mm longer Weight / Grip 4U (Avg.83g) G5, 6 / 3U (Avg.88g) G4, 5, 6 Stringing Advice 4U: 20 - 28 lbs, 3U: 21 -...