These great tools are used for glue stick appliqué, there are two tools in the pack.
Watch how to use these tools https://youtu.be/9O9BbdDf4Jc
Used in conjunction with appliqué paper and a glue stick pen. The pronged tool is used in your left hand (if your right handed) to steady the appliqué shape and the second tool which has a iron shaped end is used in your right hand to turn the edge of the fabric over to the wrong side and press in place.