There should be a little instruction sheet with the arrows. Basically, you need to first cut them to length. There is a little carborundum stone included that they recommend for chamfering the end after cutting. Then you swab in the inside of the arrow with rubbing alcohol. Mix the enclosed epoxy (they give you too much), and put a small amount on the insert. Push into the arrow with enclosed tool (should be chartruse). Pull tool out and let them lay in a horizontal position for 24 hours.