*Find your spine here* *WE CANNOT ISSUE RETURNS OR REFUNDS OF ANY KIND. PLEASE DOUBLE CHECK SPINE PRIOR TO SUBMITTING YOUR ORDER* Description Speed and accuracy of a small diameter with the durability and kinetic energy of a large diameter arrow 100% high modulus carbon fiber construction .204" ID small diameter shaft reduces wind drift and the SHOK SS insert system improves F.O.C. while increasing penetration Digitally spine aligned for increased accuracy and consistency Factory Fletch options are hand fletched for optimum vane performance Each dozen is matched weighted to +/- .5 grains for tighter grouping Advanced nano ceramic ICE coating improves penetration and also aids in removal from targets Weight: 250 spine 9.9 gpi | 300 spine 8.8 gpi | 350 spine 8.2 gpi | 400 spine 7.5 gpi Straightness: .001" Includes: SHOK SS insert (60 grains) Bohning A nock: (7 grains)