Size G4 - 5U(75-79.9g ) Brand YONEX Grip Size G4 Sport Badminton Material Graphite NANOSCIENCE technology - With streamlined aerodynamic NANOSCIENCE technology built into the shaft for a stiff flex and unparalleled repulsion power, the NANORAY 68 Light is engineered for lightning-fast shots Ultra-light (77 grams) - Speedy shots & great maneuverability without sacrificing on power | High tension support (30 lbs string tension) - more power and better control. Head Size: 6.5 sq. in. Isometric head - Bigger sweet spot | Built-in T-Joint | Carbon Graphite shaft - strong construction and light weight Specifications : Frame Material - Carbon Graphite | Shaft Material - Carbon Graphite | String Tension - 30 lbs | Weight - 5U (75-79.9 grams) | Grip Size - G4 (