The all-carbon construction and wood grain finish of Gold Tips Traditional Shafts deliver an extremely durable arrow for die-hard archers. Straightness tolerance of +-.006 and weight tolerance of +-2.0 grains. Includes nocks and inserts. Per 12. Sizes: 600 (7.8 gpi), 500 (8.6 gpi), 400 (9.3 gpi), 340 (10.5 gpi). Straightness factor: .006. Wt. tolerance: 2 gr. Size Spine GPI Dia. Length 600 .600 7.8 .296 30 500 .500 8.6 .297 32 400 .400 9.3 Type: Arrow Shafts.