These bags are certified child-resistant and labeled with instructions for adult use. Zipper closure deters child access to content. Bags are tamper-evident when heat sealed above zipper. The 5 mil foil barrier controls oxygen and moisture to provide a long shelf life. Great for applications that require nitrogen flushing. Low moisture vapor transfer rate maintains shelf life protecting your flavor brand. Bottom gusset allows bag to stand up and expand for bulky items. CERTIFIED: Meets the Poison Prevention Packaging Act, CFR Title 16, Part 1700. Includes Part 1700.15 & 1700.20 for Poison Prevention Packaging. Complies with ASTM D3475 for child-resistant packaging.