Spin-Tite Turbine Tip is the first spin stabilized field point. Today's ultra sonic fighter jets utilize axial flow turbines to propel them through the upper stratoshpere 3 times faster than the speed of sound. That same technology is used in the all-new Spin-Tite Turbine Tip! This patented technology, called Spin-Tite Airfoil Technology actually spin-stabilizes arrows from the front. Finally, high powered rifle accuracy in a target tip. Easy to pull and unaffected by crosswinds. Spint-Tite Turbine Tips Dozen Pack.