First, work the leather back and forth to get it soft and pliable, then bring the rein thru the hole from the back of the slobber strap to the front and try not to pull on the end. Instead, push/work the end thru as much as possible. Pulling the end thru with force can sometimes cause your turks knots to come off and that's not something we want to happen.
   
Next, bring the rein around and under the slobber strap
   
Loop through to make a knot...
   
Pull tight, and you're ready to ride. This rein is shown as it would be tied on the off side- simply pull thru until your loop rein is at the desired length, and you're good to go. Easy to adjust.
   
Disclaimer: Seller is not responsible for misuse of training equipment or any events leading to accident, injury, or death. Buyer assumes all liability when working with equines, and should always consult with a professional regarding proper use of all training equipment.