Purple on contact yet drying clear, Elmer's Disappearing Purple School Glue Sticks help you see exactly where you're sticking your charts, pictures, and more The glue stick applies smoothly with a disappearing purple formula, making it perfect for kids just learning how to glue. Add on its non-toxic, acid-free formula and you can see why it's the ideal adhesive for classrooms, homes, and youngsters. Total weight: 1.23 lbs.