Carbon core arrow with diamond polished 7075 alloy jacket. Smaller diameter and increased weight make this an ideal arrow for outdoor target and field archery. Straightness tolerance: +-.001 Inch, Weight tolerance: +-2 gr. Available in sizes 530 (8.4 GPI), 490 (8.9 GPI), 450 (9.4 GPI), 400 (10.0 GPI), and 375 (10.3 GPI). All components sold separately.