SUPERIOR ENGINEERING - The Adrenaline series is engineered for speed and accuracy while delivering outstanding strength and durability. The advanced layered carbon design allows for greater consistency in performance. PERFORMANCE VANES - High performance Assault 2"vanes for maximum speed and greater accuracy. REAL STRAIGHTNESS- All Adrenaline series shafts are 100% laser checked to be within +/- 0.006" of an as a maximum measurement - not an average. SPECIFICATIONS: 250-size, 8.96 gpi, 30.0" Length, 0.402-Inch spine and 0.295-Inch diameter MATCHED WEIGHT SET - All Adrenaline series are sorted and matched by weight for best-in-class consistency with a weight sorting tolerance of +/- 2.0 grains.