PET umugozi (polyester strap) ikura imbaraga zayo muburemere bwa molekuline yibikoresho byayo, bipimwa nubwiza bwimbere (IV). Urwego rusanzwe rwa IV kurwego rwohejuru rwa PET ni 0,60 kugeza 0,95 dl / g.
Guhitamo neza iburyo bwa PP (polypropylene strap) ubugari nibyingenzi kubwumutekano wumutwaro, guhuza ibikoresho, no gukora neza. PP umugozi uraboneka mubugari busanzwe kuva 5mm kugeza 19mm. Imishumi migufi (5-9mm) ikwiranye n'amakarito yoroheje na e-ubucuruzi, mugihe imishumi yagutse (12–19mm) ikora pallet iremereye n'imizigo yinganda.