The easy-to-use easy-to-clean washable glue sticks in this 30-pack are a favorite choice for teachers in a wide array of situations. Made of non-toxic materials and manufactured completely free of acids the glue sticks are safe for use in the classroom and in the hands of little children. Elmer s Glue Sticks dry clear on paper to keep arts and crafts looking good once they re finished and ready for display.