The Carbon Express Maxima Triad features Tri-spine RED Zone Technology, leading 360 degree spine consistency, and diamond weave build for strength and durability along with lighter weights hunting arrow. Tri-Spine/RED ZONE Technology - Patented 3-spine arrow shaft with less than 1/3 the oscillation vs single spine arrow and 4 times the accuracy. Extreme Small Diameter .166" ID ultimate penetration and knockdown power with significant reduction in crosswind drift. 30-Ton Carbon ensures faster recovery out of the bow and superior down range performance. BullDog Nock Collars made of aircraft grade aluminum designed to prevent rear impact damage. Laser Match Set - Pack sets are sorted and matched by spine and weight for best-in-class consistency. Spine sorting tolerance +/- .0025" and weight sorting tolerance +/- 1.0 grains. +/- .002 Real Straightness - Laser checked for straightness to remarkable 1/10000 of an inch. Launchpad Precision Nocks - Controlled arrow release and integrated shaft alignment for more consistent accuracy. Q2i Rapt-X 2" Vanes 6 or 12 pack. Please Note: Color may vary.