Permanent Glue Stic Bonus Pack comes with enough glue sticks to take care of all kinds of household, business or school projects. The permanent adhesive securely fastens paper, cardboard, photographs and more for great crafting, scrapbooking and other projects. The photo-safe formula is acid-free and won't harm precious materials. The adhesive easily washes out of clothing. Nontoxic glue is ACMI certified and conforms to ASTM D4236. Packaging is made of plastic. Less harsh chemicals - made with fewer harsh chemicals, or safer chemicals than typical alternatives, helping reduce your use of and exposure to substances that may be more harmful to your health and the environment.