The CX Nano Pro is designed specifically for FITA, NAA and NFAA long-distance field archery shooting. Engineered with incredibly light yet strong 46-ton caron, the CX Nano Pro recovers even faster out of the bow than the Nano-XR while delivering the flattest trajectory and superior down range accuracy. It has the smallest diameter of any of the Carbon Express Target Arrows which mean it nearly eliminates cross wind drift. And unlike any of the aluminum core arrows, the CX Nano Pro won't take a set (permanent) bend.