Disappearing purple liquid glue goes on purple and dries clear. This special effect helps children see exactly where they're gluing while also drying clear for the perfect project every time. Nontoxic glue applies smoothly and works great on a wide range of artist crafting materials. It is also washable for easier cleanup. This glue is an ideal adhesive for classrooms, homes and youngsters. It comes in a convenient squeeze bottle with a twist-to-open tip for easy application.