Used to enable centering of arrow to your Bow and Bowstring and to tune flight of arrow from the bow.
Smooth action micro adjust plunger supplied with spare springs, tip spanner and tuning instructions
This is a SUPER button, the distance from the point that the button screws into your bow through the handle to the tip where the arrow passes is something you need to measure. Or tell us your bow. 5/16 and 8mm and 10mm available.