100% carbon fiber construction; .204 diameter for maximum speed and penetration with less wind deflection; Every arrow digitally spine aligned for increased accuracy and shot to shot consistency; Each dozen weight matched to +/-0.5 grains for precise shot consistency and tighter grouping; Advanced Nano ceramic arrow coating improves penetration and allows for easy removal from targets; Shok insert included; 60 grain stainless steel construction; Shok adaptor accepts 8/32″ broadheads; Protects the tip of the arrow from fracturing, increases impact strength and durability; Sold in packs of 12