The Altra 246 Centrum Limited Carbon Arrows deliver unmatched performance in credit to the high-grade carbon construction. The NO SPINE technology enhances tunability and consistency. FeaturesBuilt with high-grade carbon for superior accuracy and efficiencyStraightness tolerance of up to 0.003" for an excellent balance of performance and valueNO SPINE Technology ensures enhanced tunability and consistencyProprietary high modulus carbon construction for durability and reliabilityPremium aluminum and stainless steel components ensure long-lasting qualityPack: 6 fletched shafts (1 grey/2 white Altra-branded Q2i RAPT-X vanes)Weight Match: Each package is weight-matched to +/- 1 grainLength: 32" totalComponents Included: Inserts and nocks