Line up the set of holes to correspond to the length that you wish your strap to be.
Fold the latigo string in half and insert the ends through the hole as shown.
Feed it through the end hole on the rear portion of the adjustment strap.
Feed back through the other hole and into the corresponding hole in the front of the adjustment strap.
Feed through the loop you created in step two.
Pulling from the underside, take up the slack to bring the loop down tight.
Pull the slack from the underside as shown.
The back of the adjustment strap should now look like this.
Pull the slack through the loop and it should look like this. You are ready to go.