Victory Rival Arrow Shafts 250 Spine 1 doz Black. 5K carbon weave construction that enhances strength while reducing grain weight. This advanced design promotes a flatter trajectory and faster arrow recovery delivering exceptional downrange accuracy and tighter groupings. Each arrow is digitally spine-aligned for improved flight consistency and every dozen is weight-matched to within +/-0.5 grains for unmatched shot-to-shot precision. Engineered for serious bowhunters the Rival offers maximum performance and reliability in every shot. Straightness tolerance: 0.005 inches. 225 SS inserts (30gr) Nock bushings (7gr) IP 5 .204 nocks (8gr) .204 back weight (20gr) included. Specifications for Victory Rival Arrow Shafts: Manufacturer: Victory Color: Black Length: 32 in Quantity: 12 Straightness: 0.005 in Fabric/Material: Carbon Fiber Features of Victory Rival Arrow Shafts: MaxxKe 1.5K carbon weave for added strength and reduced grain weight 90-degree carbon construction minimizes torque and speeds recovery Digitally spine-aligned for consistent arrow flight Weight-matched within +/-0.5 grains per dozen Straightness tolerance: 0.005 inches Shaft ID: 0.225 inches Shaft length: 32 inches Available spines and weights (GPI): 250: 9.6 GPI 300: 8.6 GPI 350: 8.1 GPI 400: 7.1 GPI 500: 6.9 GPI Package Contents: Victory Rival Arrow Shafts Victory RVL-250S-12: Victory Rival Arrow Shafts 250 Spine 1 doz Black