1. First, fold the square quilt into an angle, and the baby will pick it up and put it in the middle of the bag, so that the folding angle of the bag is in line with the baby's shoulder.

2. Then you need to fold the hug next to the shoulder and back, and then continue to fold the end under the baby's feet and cover the baby's abdomen. Then fold the other side back and press it on the other side of the baby's body.

Finally, the quilt should be fixed with special bandage.