Carbon composite arrow designed for outstanding strength and durability. Straightness tolerance of +-.006â?쳌 and weight tolerance of +-3.0 gr. Available in sizes 2040 (.623â?쳌 spine, 7.04 GPI), 3050 (.491â?쳌 spine, 8.06 GPI), 4560 (.410â?쳌, 8.97 GPI), and 6075 (.331â?쳌 spine, 10.01 GPI). Includes nocks and inserts. Factory fletched with 2â?쳌 vanes.