At CraftOnline, our Glue Pens may look simple enough, however they provide both temporary and permanent adhesive options. The glue is blue when wet and clear when dry. For a permanent hold, apply glue to one paper surface and adhere it to another paper surface. For a temporary hold, apply it to a paper surface and allow it to dry clear before adhering it to the other paper. No matter your project, our Glue Pens are a must-have to add to your craft supplies.