Ultralight shafts use Gold Tips Smart Carbon technology in a lightweight target arrow. Straightness tolerance of +-.003 and weight tolerance of +-0.5 grains. Available in sizes 700 (5.4 GPI), 600 (5.9 GPI), 500 (6.3 GPI), 400 (7.4 GPI), 340 (8.2 GPI), 340 (8.2 GPI), and 300 (8.5 GPI). Components sold separately.