ʻO ka Polypropylene Plastic Ball ka pale wela, ke kūpaʻa kino kino o nā plastics, me ka polyethylene (PE), polypropylene (PP), reinforced polypropylene (RPP), polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), a me (PVDF) e like me mea hoʻopili hale kiaʻi.