DYNAMIC SPINE CONTROL - Patented high-tech carbon material construction that manages dynamic spine in a new way to make broadheads fly better.
SD - Features a .203 inch inside diameter for better penetration and less wind-drift
RED ZONE - The section of the Maxima RED SD arrow shaft that manages arrow flex in flight, which is called dynamic spine.
REDEFINING BROADHEAD ACCURACY - broadhead moves the center of mass forward on an arrow, which increases the flex of the arrow when launched from the bow.
REDUCES OSCILLATION - The stiffer front end of the arrow shaft repositions arrow flex to the RED ZONE and reduces oscillation on the front end to make broadheads shoot more consistently.