Features: Dual Spine Weight Forward - Patented 2 Spine arrow shaft that reduces oscillation by 50% vs single spine and has TWICE THE ACCURACY BuffTuff - Patented outer layer construction on the front 2/3 that provides the world&&';;s toughest and quietest carbon arrow finish plus makes it easier to remove from targets. Diamond Weave - Patented outer layer construction on the back 1/3 that provides ultimate stiffness and unparalleled spine technology. BullDog Nock Collars - Exclusive feature made of aircraft grade aluminum designed to prevent rear impact damage Laser Match Set - Pack sets are sorted & matched by spine and weight for best-in-class consistency. Spine sorting tolerance +/- .0025" & Weight sorting tolerance +/- 1.0 grains +/- .002 Real Straightness - Laser checked for straightness to remarkable 1/10,000 of an inch, our straightness standards are set as a max not an average like competitors. Launchpad Precision Nocks - Controlled arrow release and integrated shaft alignment for more consistent accuracy. Q2i Rapt-X 2" Vanes - 6pks fletched with either WHITE cock vane & 2 RED vanes or YELLOW cock vane & 2 RED vanes. Online orders are unable to choose color option