The favorite choice for serious bowhunters looking for deep-penetrating big game performance. New Axis N-FUSED CARBON arrows are the first ever to utilize N-FUSED CARBON nanotubes for increased strength compared to ordinary N-FUSED CARBON arrows. Hidden Insert Technology aligns broadheads for tighter groups. “Bowhunter’s Dream Arrow” says Joe Bell, Editor Bow & Arrow Magazine. SIZES 500, 400, 340, 300, 600 Internal-fit “X” Nock – installed HIT Insert, chamfer stone, installation tool, HIT epoxy – Included Points and broadhead adapter rings – Sold separately Note: One size HIT Insert fits all ST Axis shaft sizes.