Product Features Engineered with high-grade carbon for optimal accuracy and efficiency. Straightness tolerance of up to 0.003 for precision shooting. NO SPINE Technology delivers enhanced tunability and consistency. Proprietary high modulus carbon construction for durable performance. Premium aluminum and stainless steel components for reliable quality. Product Specifications Pack Options: 6 fletched shafts (1 grey/2 white Altra-branded Q2i RAPT-X vanes) Weight Match: Each package is weight-matched to +/- 1 grain. Length: 32 total. Components Included: A.R.C.O.S. Insert/Outsert System and nocks. Spine: 400 GPI: 8.5