5U/G5- 20-30lbs Tension 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 Isometric…