New Archery Prodcuts Quik Spin Vanes feature Patented microgrooves on one side channel air for a flatter trajectory than conventional vanes. The patented "kicker" increases arrow spin by as much as 300% compared with conventional vanes for tighter groups...even with broadheads. The unique combination of our patented kicker and microgrooves stabilize an arrow in less than half the distance of a conventional vane or feather.