Designed with the durability to handle tough target butts and a smooth matte finish for easy arrow removal. 0.9cm diameter conforms to World Archery regulations for all competition. Straightness tolerance of +-.7.6cm and weight tolerance of +-2.2 grains. Available in sizes 340 (8.2 GPI), 400 (7.2 GPI) and 500 (7.2 GPI). Includes Super Unit-bushing. Nocks and points sold separately.