Flex Fletch FFP Shield Cut Vanes Blue 3.6 in. 39 pk.Flex Fletch FFP Shield Cut Vanes Blue 3. 6 in. 39 pk. Designed to withstand punishment from the elements and the rigors of competition shooting; Retain their form even after shots that pass through targets; Provides flexibility that dampens arrow oscillation and increases accuracy Item Category Code: 1200 Product Group Code: 1200I Pack Size: 39 Inactive: Yes