NuFletch's Spectrum "Light" is designed to fit the "Skinny" line of arrows manufacturers offer to today’s archers. The Spectrum Light will adapt to arrows using hidden insert technology as well as arrows using traditional inserts. The Spectrum Light will fit most carbon shafts with manufactures outside diameters falling between (.265-.275). The precision alignment of the 120 degree fletch on the skinny arrows all but eliminates complications due to tough fletching jig requirements. Fletching the Spectrum Light with Mini Blazers is not a problem if you are concerned about cross wind performance! Simply place the mini in the Spectrum Light and move the vane to the rear of the fletch assembly.