Victory Bamboo Trad Arrows 500 6 pk.Victory Bamboo Trad Arrows 500 6 pk. Pack of 6 arrows; 100 percent carbon fiber construction; Bamboo finish for traditional look; Standard . 245 inch diameter; Available spines: 350, 400, 500, 600; Shaft weight: 8. 9 GPI (350), 8. 2 GPI (400), 7. 5 GPI (500), 7. 2 GPI (600); Shaft length: 31 inches; Shaft ID: 0. 245 inch; Shaft OD: 0. 293 inch (350), 0. 289 inch (400), 0. 285 inch (500), 0. 283 inch (600); Straightness tolerance: + . 003 inch;