Precision Angle Control- Fletches arrows from 2° left to 2° right, giving shooters full control over spin, stability and arrow flight. Adjustable offset on vanes or feathers up to 5.5" (140mm) long Capable of 3 or 4 fletch Made in the USA Works Seamlessly with most carbon, aluminum, and wood shafts, making it ideal for both target archers and bowhunters