1. Insert a shoe lace from the outside into the upper opening of the shoe and pull it through the middle of the Lacefix on the inner side of the shoe.
2. Move the Lacefix down along the lace until it touches the inner side of the shoe. Then put the lace through the upper hole (the hole by the teeth) and pull it all the way through, as shown in the picture. Repeat on the other sides of the shoe and try them on until they fit perfectly and come on and off easily but still stay firm on the foot.
3. Afterwards bring the lace through the teeth on top of the Lacefix, pull through the third hole and tighten well.