All carbon construction with a wood grain finish for traditional archers looking for an extremely durable arrow. Straightness tolerance of +-.003â?쳌 and weight tolerance of +-2.0 grains. Available in sizes 600(7.8 GPI), 500 (8.6 GPI), 400 (9.3 GPI), and 340 (10.5 GPI). Includes nocks and inserts.