Fold the hair tie or rubber band in half and slide it into the plastic straw.
Very carefully (it's easiest with 2 people) place the loops of the hair tie/rubber band over the chick's feet. It will not be tight on it's ankles.Obviously, the little chick will not be happy initially. It's imperative to separate the chick from the others, provide it a warm and secure box with a towel or bedding in the bottom with food and water for at minimum of 24 hours with the brace on it's legs.