The Carbon Express Photon 6mm Carbon Arrow Shafts are a standard-diameter arrow built for high speed, flat trajectory, and consistent accuracy with forgiving shot behavior. Its lightweight construction supports stable flight, while Tri-Spine Technology helps manage flex and reduce variation at the shot for dependable broadhead tracking. Built to 360 degree spine consistency standards, each shaft is designed to tune quickly and deliver uniform performance from arrow to arrow. Straightness is rated to +/- 0.002 inches max with a +/- 1.0 grains weight tolerance for repeatable precision. Features100% high modulus carbon construction with Tri-Spine Technology for improved strength, consistency, and accuracyPrecision straightness tolerance of 0.001" for dependable shot placementAvailable spine options: .400 spine (7.6 GPI), .350 spine (8.1 GPI), and .300 spine (8.9 GPI)Includes a 40 grain stainless steel insert for added front-end durability and balanceFeatures 360 spine alignment for im...