Before use, apply the stretching spray to the area of the shoe to be treated: it softens and prepares the leather, making stretching easier. Choose the form in the size corresponding to the shoe and insert it with the two halves close together, positioning it well towards the toe. If you need to work on a precise spot, insert the bunion plug into the hole corresponding to the area to be widened. Operate the rod gradually, holding the handle for a firm grip, until you feel slight tension on the material, without forcing, as excessive stretching could damage the shoe. Leave the shoe under tension for several hours, then close the form and carefully remove it. Try on the shoe and, if necessary, repeat the operation, increasing the stretch a little at a time. Proceed with particular care on delicate materials, such as thin leather or patent leather.