The VF TKO is the ultimate standard diameter hunting arrow. The 100 percent all carbon shaft incorporates MaxxKe Technology increasing kinetic energy during impact and allowing for faster arrow recovery in flight. These arrows are accurate, extremely durable, and have the most consistent spine uniformity of any Victory arrow. Straightness: .001”. Shafts include Bohning Blazer nock and Victory RPS insert. Available spines: 300 (9.5 gpi), 350 (8.7 gpi), 400 (8.1 gpi).