The pros know! NAP Bone Collector Twister 2 Inch shrinks your groups. These Bone Collector Twister arrow shafts feature QuikSpin SpeedHunter kicker/micro-groove technology that that spins arrows up to 6 times faster than conventional vanes. Result? Stable, straight driving arrows for tack-driving accuracy and optimum penetration.
Comes with 12 white shafts and 24 green.