First, measure around the outer edge of the collar to determine the length of the bias strip. Fold the fabric at a 90% angle and cut along the fold.
Fold the bias strip in half and stitch ABOUT 1/16" from the folded edge. *This is the goal, but this measurment may need to be adjusted depending on the weight of the fabric.
Do not cut off the thread tails! These will be used when turning the bias tube. Trim the excess fabric off of the bias strip, leaving a little less than 1/16".
Run the loop turner through the bias tube and securely wrap the thread tails around the hook at the end of the loop turner. Say a prayer, hold your mouth just right, and gently begin to pull the loop turner back through the tube, gently pulling the tube right side out.
I consider it a good day if the the strip turns easily on the first try, so don't be discouraged if this takes a little practice.