Security Markers Plastic Long Adjustable Seal Pitbull The Acme Pitbull Seal is a fixed length seal manufactured from two dissimilar materials. Product Specifics MARKING: Laser or Foil marking Consecutively numbered as standard Optional Customer name/logo MATERIAL: Body – Polypropylene with Biodegradable additives/Insert – Acetyl with Biodegradable additives Airlines, Cargo, Trailers, Containers, Rail freight, Refineries, Warehouses, Cash bags, Postbags, Lockers Back