* These brackets are made of a metal core coated with polypropylene. * Recyclable. * Without plasticizers or acid. * You use the brackets with the Liftboy to bind your binder contents so you can reuse the binder. * Suitable and approved for long-term document archiving for organizations that must meet the strict requirements of the Archives Act! * Meets the ICN12 quality label. * Acid-free and plasticizer-free.